Bug 2466488 (CVE-2026-43964) - CVE-2026-43964 postfix: buffer over-read via malformed enhanced status code
Summary: CVE-2026-43964 postfix: buffer over-read via malformed enhanced status code
Keywords:
Status: NEW
Alias: CVE-2026-43964
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2477885
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-04 19:01 UTC by OSIDB Bzimport
Modified: 2026-08-06 22:56 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:25930 0 None None None 2026-06-15 09:50:43 UTC
Red Hat Product Errata RHSA-2026:25932 0 None None None 2026-06-15 10:08:09 UTC
Red Hat Product Errata RHSA-2026:26205 0 None None None 2026-06-16 11:49:50 UTC
Red Hat Product Errata RHSA-2026:50963 0 None None None 2026-08-06 02:15:55 UTC
Red Hat Product Errata RHSA-2026:50964 0 None None None 2026-08-06 02:24:51 UTC
Red Hat Product Errata RHSA-2026:51034 0 None None None 2026-08-06 07:47:08 UTC
Red Hat Product Errata RHSA-2026:51436 0 None None None 2026-08-06 22:56:14 UTC

Description OSIDB Bzimport 2026-05-04 19:01:49 UTC 
Postfix before 3.8.16, 3.9 before 3.9.10, and 3.10 before 3.10.9 sometimes allows a buffer over-read and process crash via an enhanced status code that lacks text after the third number.
Comment 4 errata-xmlrpc 2026-06-15 09:50:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:25930 https://access.redhat.com/errata/RHSA-2026:25930
Comment 5 errata-xmlrpc 2026-06-15 10:08:08 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:25932 https://access.redhat.com/errata/RHSA-2026:25932
Comment 6 errata-xmlrpc 2026-06-16 11:49:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:26205 https://access.redhat.com/errata/RHSA-2026:26205
Comment 7 errata-xmlrpc 2026-08-06 02:15:54 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Via RHSA-2026:50963 https://access.redhat.com/errata/RHSA-2026:50963
Comment 8 errata-xmlrpc 2026-08-06 02:24:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:50964 https://access.redhat.com/errata/RHSA-2026:50964
Comment 9 errata-xmlrpc 2026-08-06 07:47:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:51034 https://access.redhat.com/errata/RHSA-2026:51034
Comment 11 errata-xmlrpc 2026-08-06 22:56:12 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:51436 https://access.redhat.com/errata/RHSA-2026:51436
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