Bug 2550534 (CVE-2026-109677) - CVE-2026-109677 freerdp: FreeRDP 2.0.0-beta1 before 3.28.0 Out-of-Bounds Read via LocateCardsByATRA Handler
Summary: CVE-2026-109677 freerdp: FreeRDP 2.0.0-beta1 before 3.28.0 Out-of-Bounds Read...
Keywords:
Status: NEW
Alias: CVE-2026-109677
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2554004 2554005 2554006
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-13 13:57 UTC by OSIDB Bzimport
Modified: 2026-10-16 10:20 UTC (History)
2 users (show)

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

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Description OSIDB Bzimport 2026-10-13 13:57:54 UTC 
FreeRDP from 2.0.0-beta1 before 3.28.0 contains an out-of-bounds read vulnerability in smartcard_LocateCardsByATRA_Call because the ATR pattern cbAtr byte count is not capped. Malicious RDP servers can send crafted ATR mask arrays to use query timing as an oracle, leaking heap memory bit-by-bit to defeat ASLR and aid RCE exploits.
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