CVE-2026-109677

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/FreeRDP/FreeRDP/commit/ececc5cbd0646ef012ca178322e6ef922a11f0c1	Patch
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8m97-wwx3-r8vj	Exploit Vendor Advisory
https://www.vulncheck.com/advisories/freerdp-2.0.0-beta1-before-3.28.0-out-of-bounds-read-via-locatecardsbyatra-handler	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*

History

02 Nov 2026, 20:52

Type	Values Removed	Values Added
First Time		Freerdp Freerdp freerdp
References	~~() https://github.com/FreeRDP/FreeRDP/commit/ececc5cbd0646ef012ca178322e6ef922a11f0c1 -~~	() https://github.com/FreeRDP/FreeRDP/commit/ececc5cbd0646ef012ca178322e6ef922a11f0c1 - Patch
References	~~() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8m97-wwx3-r8vj -~~	() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8m97-wwx3-r8vj - Exploit, Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/freerdp-2.0.0-beta1-before-3.28.0-out-of-bounds-read-via-locatecardsbyatra-handler -~~	() https://www.vulncheck.com/advisories/freerdp-2.0.0-beta1-before-3.28.0-out-of-bounds-read-via-locatecardsbyatra-handler - Patch, Third Party Advisory
CPE		cpe:2.3:a:freerdp:freerdp::::::::

13 Oct 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-13 14:17

Updated : 2026-11-02 20:52

NVD link : CVE-2026-109677

Mitre link : CVE-2026-109677

CVE.ORG link : CVE-2026-109677

JSON object : View

Products Affected

freerdp

freerdp

CWE

CWE-125

Out-of-bounds Read

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