Bug 2533951 (CVE-2026-91959) - CVE-2026-91959 FreeRDP: FreeRDP: Denial of Service due to buffer over-read in RPC gateway
Summary: CVE-2026-91959 FreeRDP: FreeRDP: Denial of Service due to buffer over-read in...
Keywords:
Status: NEW
Alias: CVE-2026-91959
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2534084 2534085
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-15 15:52 UTC by OSIDB Bzimport
Modified: 2026-10-08 06:53 UTC (History)
2 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-2026:75570 0 None None None 2026-10-05 04:23:26 UTC
Red Hat Product Errata RHSA-2026:76747 0 None None None 2026-10-06 14:28:29 UTC
Red Hat Product Errata RHSA-2026:76755 0 None None None 2026-10-08 06:53:07 UTC

Description OSIDB Bzimport 2026-09-15 15:52:11 UTC 
FreeRDP before 3.31.0 contains a buffer over-read vulnerability in the rts_read_result function within the RPC gateway transport parser. Attackers can send a malicious BIND_ACK PDU with a truncated result entry to trigger an out-of-bounds read causing process abort.
Comment 1 Jon Orris 2026-10-05 04:23:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:75570 https://access.redhat.com/errata/RHSA-2026:75570
Comment 2 Jon Orris 2026-10-06 14:28:29 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:76747 https://access.redhat.com/errata/RHSA-2026:76747
Comment 3 Jon Orris 2026-10-08 06:53:06 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:76755 https://access.redhat.com/errata/RHSA-2026:76755
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