Bug 2554625 (CVE-2026-111880) - CVE-2026-111880 freerdp: freerdp: Denial of Service via heap out-of-bounds write in NTLM authentication
Summary: CVE-2026-111880 freerdp: freerdp: Denial of Service via heap out-of-bounds wr...
Keywords:
Status: NEW
Alias: CVE-2026-111880
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: 2555406 2555407 2555408
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-17 19:02 UTC by OSIDB Bzimport
Modified: 2026-10-19 07:33 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-10-17 19:02:32 UTC 
FreeRDP versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and MIC offset to write 16 zero bytes beyond the allocation.
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