CVE catalog

CVE-2026-109677

Severity: High · CVSS 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: Oct 13, 2026, 1:27:06 PM UTC
Updated: Oct 13, 2026, 2:17:30 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.34% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	freerdp2	bookworm	`2.11.7+dfsg1-6~deb12u1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	freerdp2	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[freerdp2-dev]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[freerdp2-shadow-x11]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[freerdp2-wayland]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[freerdp2-x11]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libfreerdp2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libfreerdp-client2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libfreerdp-server2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libfreerdp-shadow2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libfreerdp-shadow-subsystem2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libuwac0-0]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libuwac0-dev]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libwinpr2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libwinpr2-dev]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[libwinpr-tools2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
[winpr-utils]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  nvd · freerdp2 · debian · bookworm

Observed: Oct 23, 2026, 7:39:03 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]