Information technology - OASIS Common Security Advisory Framework (CSAF) v2.0 Specification

Titre manque

General Information

Status
Published
Publication Date
20-Feb-2025
ICS
35.020 - Information technology (IT) in general
 
35.030 - IT Security
Technical Committee
ISO/IEC JTC 1 - Information technology
Drafting Committee
ISO/IEC JTC 1 - Information technology
Current Stage
6060 - International Standard published
Start Date
21-Feb-2025
Due Date
03-Jan-2026
Completion Date
21-Feb-2025

Overview

ISO/IEC 20153:2025 - "Information technology - OASIS Common Security Advisory Framework (CSAF) v2.0 Specification" - is the first edition of an international standard that adopts the OASIS CSAF v2.0 specification as an ISO/IEC standard. Prepared by the OASIS CSAF Technical Committee and adopted through the JTC 1 PAS procedure, this document defines a standardized approach for representing and exchanging security advisories. It enables consistent, interoperable advisory information to support automated processing and coordinated vulnerability disclosure.

Keywords: ISO/IEC 20153:2025, CSAF v2.0, Common Security Advisory Framework, security advisories, vulnerability management, advisory automation.

Key Topics and Requirements

While the full text contains the normative details, ISO/IEC 20153:2025 focuses on core technical themes typical of a CSAF specification:

  • Structured advisory representation: Defines a standardized, machine‑readable representation for security advisories and related metadata to reduce ambiguity in advisory consumption.
  • Versioning and lifecycle: Addresses advisory version control, publication dates, and the advisory lifecycle so recipients can track updates and revisions.
  • Interoperability: Promotes consistent semantics and data models to enable automated ingestion by tools, vulnerability management systems, and CERT/CSIRT workflows.
  • Roles and responsibilities: Clarifies actor types (publishers, consumers, aggregators) and expectations for advisory publication and distribution.
  • Distribution and aggregation: Covers patterns for sharing advisories across channels and integrating advisories from multiple vendors or repositories.
  • Security and integrity considerations: Encourages practices to ensure authenticity, integrity and traceability of published advisories.

Note: For prescriptive normative text (schemas, field names, allowed values), consult the official ISO/IEC 20153:2025 publication.

Practical Applications and Users

ISO/IEC 20153:2025 is useful for organizations that publish, consume, aggregate or automate security advisories:

  • Product vendors and software maintainers publishing vulnerability advisories.
  • CERTs, CSIRTs and national authorities coordinating disclosures.
  • Security operations teams and vulnerability management platforms ingesting advisories for triage and remediation workflows.
  • Threat intelligence providers and supply‑chain security programs aggregating advisory feeds.
  • DevOps and engineering teams integrating advisory data into patch management and CI/CD pipelines.

Benefits include faster, less error‑prone advisory processing, improved automation of remediation workflows, and better cross‑industry coordination on vulnerability disclosures.

Related Standards (if applicable)

CSAF implementations are commonly integrated with vulnerability naming and scoring systems and threat‑intel formats, for example:

  • CVE (identifiers)
  • CVSS (scoring)
  • CPE (product identification)
  • STIX/TAXII (threat intelligence exchange)

For implementation details, schema references, and interoperability guidance, obtain the official ISO/IEC 20153:2025 document from ISO or your national standards body.

ISO/IEC 20153:2025 - Information technology — OASIS Common Security Advisory Framework (CSAF) v2.0 Specification Released:21. 02. 2025 - Page 1 previewISO/IEC 20153:2025 - Information technology — OASIS Common Security Advisory Framework (CSAF) v2.0 Specification Released:21. 02. 2025 - Page 2 previewISO/IEC 20153:2025 - Information technology — OASIS Common Security Advisory Framework (CSAF) v2.0 Specification Released:21. 02. 2025 - Page 3 previewISO/IEC 20153:2025 - Information technology — OASIS Common Security Advisory Framework (CSAF) v2.0 Specification Released:21. 02. 2025 - Page 4 preview
PreviousNext
Standard

ISO/IEC 20153:2025 - Information technology — OASIS Common Security Advisory Framework (CSAF) v2.0 Specification Released:21. 02. 2025

English language
115 pages
sale 15% off
Preview
sale 15% off
Preview

Frequently Asked Questions

ISO/IEC 20153:2025 is a standard published by the International Organization for Standardization (ISO). Its full title is "Information technology - OASIS Common Security Advisory Framework (CSAF) v2.0 Specification". This standard covers: Information technology - OASIS Common Security Advisory Framework (CSAF) v2.0 Specification

Information technology - OASIS Common Security Advisory Framework (CSAF) v2.0 Specification

ISO/IEC 20153:2025 is classified under the following ICS (International Classification for Standards) categories: 35.020 - Information technology (IT) in general; 35.030 - IT Security. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO/IEC 20153:2025 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


International
Standard
ISO/IEC 20153
First edition
Information technology — OASIS
Common Security Advisory
2025-02
Framework (CSAF) v2.0
Specification
Reference number
© ISO/IEC 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO/IEC 2025 – All rights reserved
ii
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are members
of ISO or IEC participate in the development of International Standards through technical committees
established by the respective organization to deal with particular fields of technical activity. ISO and IEC
technical committees collaborate in fields of mutual interest. Other international organizations, governmental
and non-governmental, in liaison with ISO and IEC, also take part in the work.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of
document should be noted (see www.iso.org/directives or www.iec.ch/members_experts/refdocs).
ISO and IEC draw attention to the possibility that the implementation of this document may involve the use of
(a) patent(s). ISO and IEC take no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO and IEC had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent database
available at www.iso.org/patents and https://patents.iec.ch. ISO and IEC shall not be held responsible for
identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
In the IEC, see www.iec.ch/understanding-standards.
This document was prepared by OASIS [as OASIS Common Security Advisory Framework (CSAF) TC] and
drafted in accordance with its editorial rules. It was adopted, under the JTC 1 PAS procedure, by Joint Technical
Committee ISO/IEC JTC 1, Information technology.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html and www.iec.ch/national-
committees.
© ISO/IEC 2025 – All rights reserved
iii
ISO/IEC DIS 20153:2024(en)
  & %2%3 
&(  
7   
7 3*3 "
& "
4  * 
J   * 
K&"  ! 
? !   

7!  3  
  0

7?   

7 %$&"

7 %$&"
4 

 %$&"
  B  

 %$&"
 "

J %$&"
E*)

K %$&"
09 

-  &"


7-  &"
-  


-  &"
! "


-  &"
4 



7-  &"
4 3 8 



-  &"
4 3 8 * 


J-  &"
3 

#3 4 &"


7#3 4 &"
4 


#3 4 &"
3  ?


#3 4 &"
3     +



7#3 4 &"
3     +
!30



#3 4 &"
3     +
+ 



#3 4 &"
3     +
/4,



J#3 4 &"
3     +
3E*)



K#3 4 &"
3     +
-/E*)



L#3 4 &"
3     +
 4,



M#3 4 &"
3     +
NE



@#3 4 &"
3     +
. E* 

J)  &"

K4&"

L3 . ?&"

M3 .&"

@3  ?&"

O3 &"

7* &"

778 &"

78 &"
   

8 &"
    

3 


7? 3"


7? 3"
 %$


? 3"
  "


? 3"
! "


J? 3"
!#8 


K? 3"
?  , 


K
7? 3"
?  , 
&9


K
? 3"
?  , 
&)3


L? 3"
)  
 

   
!" #%
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved
iv
ISO/IEC DIS 20153:2024(en)
  & %2%3 


M? 3"
4


@? 3"
3, 


@
7? 3"
3, 
! "


@
? 3"
3, 
! ? 


@
? 3"
3, 
   "


@
J? 3"
3, 
4 


@
K? 3"
3, 
4  


O? 3"
* 


7? 3"
 )  


77? 3"
& 


7? 3"
& % 


7
7? 3"
& % 
 


7
? 3"
& % 
!* ? 


7
? 3"
& % 
. 


7
J? 3"
& % 
 ?


7
K? 3"
& % 
   * ? 


7
L? 3"
& % 
*  + "


7
M? 3"
& % 
 


7
@? 3"
& % 
8 


3 &3"



73 &3"
-  



3 &3"
#3 4 



3 &3"
3 .



J3 &3"
*   


8 ,   3"



78 ,   3"
 %$



8 ,   3"
!80



8 ,   3"
!20



J8 ,   3"
?  "? 



K8 ,   3"
# 



L8 ,   3"
 ?



M8 ,   3"
 



@8 ,   3"
4



O8 ,   3"
3  



78 ,   3"
* 



778 ,   3"
* ? 



78 ,   3"
*  



7
78 ,   3"
*  
! "



7
8 ,   3"
*  
? 



7
8 ,   3"
*  
? 



7
J8 ,   3"
*  
0 



7
K8 ,   3"
*  
. ?



7
L8 ,   3"
*  
3  ?



7
M8 ,   3"
*  
* *C 



7
@8 ,   3"
*  
E*)



78 ,   3"
 



7J8 ,   3"
& 



7K8 ,   3"
& 
J3 
J
73 7!#- 
J
3   "  
J
3      "
J
J3 J  " "
J
K3 K80D
K   ! 
K
7#  
K
    ?   
K
 
 

   
!" #&
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved
v
ISO/IEC DIS 20153:2024(en)
  & %2%3 
L&
L
7/  "&
L
7/  ?   3  ?
L
/ ?   3  ?
L
!   ?   3  ?
L
J/  ?   3 . ?
L
K/ ?   3 . ?
L
L!   3  
L
M/  $  8 3 
L
@   !8
L
O   !8   
L
7   !8
L
77!20
L
7)  
L
73E*)
L
7J*  + "
L
7K&  
L
7L) ? 8 
L
7M?  ? 
L
7@* *  + "
L
7O*  + "0 3
 8 
L
4
 ? 8 
L
7/    *  + "
L
/ ?    *  + "
L
/ E !80
L
J/ ?     
L
K/ E +  
L
L3 , ? ! "4 
L
M3 &
L
M
7? 4
L
M
? * 
L
M
8 ,   
L
M
J3 &
L
M
K8 ,  "4
L
M
L3  
L
M
M80D3  
L
M
@8 ,  " ?
L
M
O   
L
M
7   
L
M
778 ,   
L
@&   
L
O*  $ 3 * 
L
/ 9    8  
L
78 *  3 8 
L
# $ 3 * 
L
/ # $ 80D1   !3 
L
  &
L

7E?   3  ?
L

/  *  
L

/   
L

J- /    *  + "
L

K   * ?  *  + "
L

L!* ?  *  + "
L

M/  ?   
L

@E/?K "+  
L

OE+
7 "+  
L

7/  &)3 ,
L

77/  !  E*)
 

   
!" #'
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved
vi
ISO/IEC DIS 20153:2024(en)
  & %2%3 
L

7/  ? )  
L

7 
L

7JE3  )  
L

7KE? )  
L

7L/  3     +
L

7M!80   ?
L

7@3 8 * $ 
L

7O!8# 93 
L

   3 
L
   &
L

7E!8 "  "
L

E!8

L

/  !80
L

J/  !20
L

KE+ 
L

LE
 E*)#  *
L

ME E*)#  *
L

@  %
L

O-  !  
L

7E 3 8 * 
L

77E 8 8   
M?  , !# 
M
7*C 
M
7*C 78  !# 
M
*C #  
M
*C &)
M
J*C J&)32+ &0
M
K*C K&)3/-0* &)3*0?
M
L*C L4*  
M
M*C M 
  
6
M
@*C @  "
9
M
O*C O2
%$E*) 
  
6
M
7*C 7?4 
M
77*C 77" 
M
7*C 7 9
9
M
7*C 7  

M
7J*C 7J?  "  
M
7K*C 7K*) 0
M
7L*C 7L*) 0  
M
7M*C 7M*) 0 " 
M
7@*C 7@  "
M
7O*C 7O  
M
*C 3, 3.3N"
M
7*C 7) !# 
M
*C &$ 6     
M
*C / 
M
*
M

7*!#, 
M

*!# 
M

*!# 
M

J*!# 
M

K*!#  
M
*  
M

7#   
  
6
M

*  !# 
@ "(  "( ?  3  !   
O!  
O
7!  & 
 

   
!" #(
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved
vii
ISO/IEC DIS 20153:2024(en)
  & %2%3 
O
7!  ! 7!# 
O
!  ! !# 
O
!  ! !#   
O
J!  ! J!# 
O
K!  ! K!8*#!# 
O
L!  ! L!#   "
O
M!  ! M!#
 
O
@!  ! @!#  
O
O!  ! O!#  
O
7!  ! 7!# 
O
77!  ! 77!# $
O
7!  ! 7!#  "
O
7!  ! 7!#    "
O
7J!  ! 7J!#,     
O
7K!  ! 7K!#9   
O
7L!  ! 7L!#   
O
7M!  ! 7M!#-/   "
 9
 %$
 9-
*  + "
 9!
.    B!#? 
!
7#  B
!
 "
!
 
!
JE* 
!
K0
!
L? 
 

   
!" #
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved
viii
ISO/IEC DIS 20153:2024(en)
  & %2%3 

  
$)$& 
&      4
 /  3*3 "( $&  ! $ 
 , 
#   $ "  ,    ",       (  "
   (    3"*   &!>$, $$$
  

     

 
 &"
&%"$:/E&:(:/E&4&:(:*0PE *0?:(:+)):(:+))4&:(:+E)?:(:+E)?4&:(:*0!//04?0?:(:4&
*0!//04?0?:(:/F:( :3& 4):    ,    , -!37JG*#!77OH G*#!@7MJH
$( "$("       ( $

#  ($      "
 
     ,           C   ," 
 
      $    "  
 
" 
 $ "    ,"  " (      ,
       B   C  "$         (     
    "      "     ,       
   "  "   $ 
  $  "    ,       

 
 ! "   $$            

( C ,"  ,  E*
"# "     "     ( ,6  (
        I          "I   ,  ,   +&&3CI 
,  " ," +&&3C(  E*)(      

  ! "
          ,    ,  !#  C ,"
!#  " $        , 

 &  
        %   14     "

 
      !# 
  " 
     ,  ( $   !#    , $ 
  C ,"!# $



!#      "      !# 

 ,
 
  " $    !# 
    "  "9    ,"  

0 &  
!#,          "  

( &&&  
!#9        "   

" 
     ,  !#    ,  "   C ,"!#
 $
 ( 
!#
 $  % !#         
&
   !# 
, .,

!#    9  !#   $!# (9 (," 
       

12 ! "
       -/  ,    ,  !#  C 
,"!#  " $    -/ -/  , 

,
 
    !# 

& 
!#
 $  % !#            

&    !# 

 
!#    !# (  "     (  $  $ 
 

   
!" #)
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved
ISO/IEC DIS 20153:2024(en)
  & %2%3 
  9    $   

)

!# $  % !8*#          !# 

    ,"   " ($   ,"


       " Q Q  "9  ,($  Q Q9  ( 
$      " " "    " 
& "    $  ,         
,


  "   (   
,
3 ,6     
,

"       (   
45 
$         ( (
" 
"
 $   "  $  $   " 9 
   "    , 
"(   "(   "( , % "( 9  "( 

0     9 (  (      (  9"
0 
&,
,
( &     9  B 
0 
& 6&,
,
"  ,    9 " 
0 
& 6,
,
" !# $   ",
(&, $     " ,
( "
,
  ,   ,,"   " C"  "  (       
  
(
 "  $          / %$     
( &&
7 & ( &" &  "          ,"    (" "," 
       
! 

! &
"   R STR SUV
&   C    (    ,        "  $ C (   
    ,C$ C (  (9    
& 4 
57
,  9  $    
 ,, : :$   ,  "$ : : 
C    
&& 6&,6 ,        
"
" 
  ,   "       !# 
 
(        $      
& 7 C       9
 " $ 
C $   $    I        $," $    

 (       ,     ,"   9  
,7   
  ,  
  ,    
,
 4
( 5   $      
,&  0 "  $    "     
,& "        
,& 
      "$    ,"      , 
,
&$           C  " 
"#   " ,  "(
      C 

 

   
!" # 
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved

ISO/IEC DIS 20153:2024(en)
  & %2%3 
,
    "  ,

$ ( $ (   (

$  ,$   
&    
  ( (  ,   ,

,
,
  , ,6           $  

 &,
,
"  "         !#    !#
  
$  
,
"   ," (      

,
"( "
 ,           (,   
"# 
 "( %
, 
         "
0
       "     
"   "        ,!# $    
0 
(        C      B    
0 
"       B     9   
&,     "  (    9 (    
,.&&
(    $    $   "   

&    >  B ,     

" $    , ,  


  "

  "(    (  B             $   $ 
 
'88 ,  "09  ,  "D  
 ,   " $        ,"
   ,  "( "  "  -/ 

 
!# $
 &
 &
   ,           9   " "    0!O7JM
G O7JMH
82%D ,/ %)  
 ,"    ( "!8*#7
7 !8*#7

9
 )(

-+.!.
/
$%&' () * +
, 
$%&,
 ( 
,
6
 
(? ,(
   %

  
,
6
 

-+.!.&  /
$%&'   ( 

+


   +$%&( 
,
6
 
    
(? ,(
   %

  
,
6
 
    

-+.:
,
.!/
$%&-
.' ( 

+
-
 +$%&( 
 $
6
 
" 
(,7O(
6
 
 7O
O6
 
"

-)& .+.$  
/
  $%&/
( 
,
  
6
 
(? ,(   %

  
,
  
6
 

-);/
- (
(:N"$ *#!  *C ):(-!37J(*#!77O(? 7
7MJ@M*#!77O(/  7OOM(
 

   
!" #
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved

ISO/IEC DIS 20153:2024(en)
  & %2%3 
$$$

 
  77O
-)<=>=/
2  (4
(:1    ,6 4  14&9C :(*#!MJLJ(? 7
7MJ@M*#!MJLJ(#, "7K($$$

 
  MJLJ
-)<=/
) , (-
(:,  "E )$  *#!77ON"2:(-!37J(*#!@7MJ(? 7
7MJ@M*#!@7MJ(/ "7M(
$$$

 
  @7MJ
-)?;/
&
- "(0
(:&1    ,6 4  14?     # :(*#!@KO(? 7
7MJ@M*#!@KO(? ,7M(
$$$

 
  @KO
=(
 )(

-$'9./
/ +
"

(  0
  +
1&2*23456(?
2  (3
! % (N
 (0 (4 &   "*MLO@(77(9

7
L@4 &
*
MLO@
-$'9.*/
/ +
"

(,
 +
1(3
! % (?
2  (N
 (0 (4 &   "
*MLOM(77(9

7
L@4 &
*
MLOM
-$'9.2/
/ +
"

(&)' +
1(/
3 (+
-(?
2  (N
 (0 (
4 &   "*MLOL(77(9

7
L@4 &
*
MLOL
-$'9./
/ +
"

(& +
1(-
! %(?
2  (N
 (0 (4 &   "
*MLOK(77(9

7
L@4 &
*
MLOK
-'/


 "#
 "7*' 
+
2+
 


 & (/ &*0(7OOO(
 
 
 ,
-'./


 "#
 "7*' 
+
2+
 


 & . "2,#' (
/ &*0(1  "7(7J( 
 
    " 9  

-)../
*' 

  

 
 
(/
   (0 (/ "7( ! 
    "  ! ($$$



 ,  "
 
 $%

7
7
-)./


  

 
 

0 ," + 
7,7M
 ! 
   7
 
  

    
7
 7  

7

7

)   
  

    
7
  

7


-/
  8
 ' 

 
 
!(3
/(N
 (
* %"(0 (# 
( 
(
1M($$$
 
  

 

-9/


 
  1!( +,
 (# *&
( 
(17O($$$
 
 
 

   57
O

-9/


 
  1( +,
 (# *&
( 
(17O($$$
 
 
7 
7
 

   
!" #
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved

ISO/IEC DIS 20153:2024(en)
  & %2%3 
   57

-@'/
9  "

9"7
.,  0++
9  * (/ &*0(K(
 $
 
 ,
-A%'*89/
  ,:+
; .+.)
  +$%&' 
1( " 9
(/ "7(
 ,
!" ?D   ,,7
  ,

 
6
-B22)C/
8-
<+
+
=)



 



( ,
 ,  %
-B2'B/
8-
"
(+
  +
8-
  
)
( ,  

 


 ,
 %$
->/
,  
' +
>2+

' > 
 +  (      ( 
@L7J0(? ,7(J($$$

  J@MJ

-;<<./
2+
 ' >2*   >/
(+
 +(      ( 7OMM
7K(
,(7K($$$

  LKLLL

-;= 2+
 ' > 
 '?
>

  
(      (  0!O7JM7@( ,(7@(
$$$

  M77

-$'%/
8*0@0
 

()$ #  ($$$


-$D)%/
/ A0/A0(. +,36 ( ,
 % 


-)999;/
N"(.
 !
4$ (:?  &  &  :(*#!O(? 7
7MJ@M*#!O(1"($$$

 
  O
-)9??/
*  (0
 -
N(:.  2  *#!&9  "!   :(-!3M(*#!KK(? 7
7MJ@M*#!KK(1"
($$$

 
  KK
-)9;>/
-
)(&
(#  (*
( )
/  (:E *    E* . " 9:(&?LL(*#!O@L(?
7
7MJ@M*#!O@L(1  "K($$$

 
  O@L
-)=/
!  (1
(? %()
(# "(+
( $(?
( *
& "(:3.3/ # :(*#!J@@(? 7
7MJ@M*#!J@@(
4,M($$$

 
  J@@
-)<9/
#  (*
(0
( 1
* %(0
(:+"9& 3 +&&37
7   !:(*#!M7(?
7
7MJ@M*#!M7(17J($$$

 
  M7
-)<=>=/
2  
(:1    ,6 4  14&9C :(*#!MJLJ(? 7
7MJ@M*#!MJLJ(#, "7K($$$

 
  MJLJ
-)>?/
 

   
!" #$
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved

ISO/IEC DIS 20153:2024(en)
  & %2%3 
4  (/
(:2
N$E *    E* :(*#!@L7K(? 7
7MJ@M*#!@L7K(/ "7O($$$

 
  @L7K
-);>/
# (0
 F
   (:# #     "8 ,  "?  :(*#!O77L(? 7
7MJ@M*#!O77L( (
$$$

 
  O77L
-$/
*' * '  ++
'  
 
/
 /(/
(?
2  (
P (N
 (
+ ,  (0 (4 &
3,
@*7L
(,77(9

7
L@4 &
3
@
7L
-'D) A. 8 /
# (0
    (F
( 
#/
B (  "9

-
/
 
!!(&
3
2(17(

-$*8/
*' +
/ ,"#' /,:C +
() 9#    ! ,((
9
 ,
9
 
-')/
( 

 

  +
(3 3E*). +,36 ( ,
 % 

 ,, 
 
 80* 4
*4.0
30!

-'8/

 ."#   :'  ":.%
 (80D,
#  2% . 4& -/    (M
,7(
  ,  95
 5 "

-'8.+  (  /

 "#   :'  ":.
$
+(80D,
#  2% . ! -/
   (DD/ "($$$

   ,  80D5 51   51

-82%/
"#  )

0
 :)0!+'"(&
- "(1
3  (/
,
/ P(0
/ (#
F (0 (2!
*   (4,L(@($$$
$
&*@*0!
9
@77L
)     , 
$$$
$
&*9
-82%.!./
91:)0' , +0
 :,/
(

(
. (/
,
/ P(+
&(4
/(?
- (/
/ "(0 (2!*   ( K(7($$$
$
&*7*0!
9  77
7JK
) 
    , $$$
$
&*9  77
7
-82%.!./
91:)0' , +0
 :,/
?  "2!D/)  ?   )  D?7
73 ?  "(
?
3(
. (
/  (/
,
/ P(+
&(3 8
- (0 (2!*   ( K(7(
$$$
$
&*7*0!
9  77

7JK
)     , $$$
$
&*9  77

?
,"
,! & 
N"$ ,"      

 

 
 


  


         $ 
  9   $ :09 ::09 : %
"# D1(
 





  



  




 

   
!" #%
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved

ISO/IEC DIS 20153:2024(en)
  & %2%3 
9        "

9   $  ,

 %$     

&         ",(,     "   
     9          

 

   
!" #&
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved

ISO/IEC DIS 20153:2024(en)
  & %2%3 
* " 
 
&!  " "# $%!#    9    "    14

&  " "      , "     "    ," 
"
            (

     "  

&         (3   "  *& 3 *&(     ,(
       
  "     "   , (  
  "           
 
  ,   
     , 
$%        " 
&         !#
 

&   14             +)), %    
        "  9  " ,  
&$        ,"
   (   "          
&      ,
     
2  ,(      %$      
  "       %

&    C      "    ( ,   (  "   
&( "
 
$  " "$  "               

!  , %(      ,  "    
     "   
   ,  "    B     
&  " 3 & 
8 ,  "    ,       "


 $
 ,&
  " "   !#   9    " "       "  
 "  
&   G14  H$  $       ,   
&   $$    
      "        B,"    ,  "   $ 
  D/)14     !#!8*# 7
(     

& "!#(W!  " "# $%X(             

&  "(14   $         ,   ,     
       !# 

&!#              "
 & (   (      

 3       ,"  

 8 ,  "           

2 ,     , ," %  ?
!  "   
 ,  "   ( %

 ,  "       

   " %           
"9    %  
  ,
&  %     ,   "" ," ",      
 (  "       

!20    , ,  " ,," 
 !# 
       

3        $ ,

?   ",         
3 ?  
!3 0  !308 
G!30
4H
8 ,  "  
!8 ,  "  "!88 
7G!87H
14  * $$$
 
  

6
!8 ,  "  "!88 
G!8H
14  * $$$
 
  


6
!8 ,  "  "!88 
G!8H
14  * $$$
 
  


6
8 ,  "!    
!2 %0  !20G!20H
 

   
!" #'
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved

ISO/IEC DIS 20153:2024(en)
  & %2%3 
!20)  $
 
   9

!    ? ?  , 
&  ) 3 &)3
? ?   $$$
 

014   ,   "       %"$(  " 

 $ +E)?,   &!>. +,

&   B  $  ,  "          "   
   $      

  J        $   C     
   
      K
&    L!#    "   
$  ,," 
  M $  , $ !# 
 "(  " ? 
3        @
#  "(       ,  "

 

   
!" #(
$
© ISO/IEC 2024 – All rights reserved
© ISO/IEC 2025 – All rights reserved

ISO/IEC DIS 20153:2024(en)
  & %2%3 
9!'& 
&!#    ,$  "  "     14 

&!#  8 
, 14   
7


 !"  
#$#$"%# 
&      
 

  "    #$ &!&!
&        B ?    3 

?    " 914  
3 " ,   "   
&"    , "        "   

&   ""  
&  $        
&
  

9*(  
&      $    " !#   %$'( 
&
(
 &
(#3 4 &  
&&
()  &
(4
&
(3 . ?
-  
  
& & &
(3 .  
& &
(3  ?  
& &
(3   
&
(*   &
(
8  &

 
)
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

Loading comments...