CVE-2026-109677CWE-125

CVE-2026-109677

Medium · published October 13, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
26.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00342 · 26.4th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-10-13T18:17Z
References (3)
https://github.com/FreeRDP/FreeRDP/commit/ececc5cbd0646ef012ca178322e6ef922a11f0c1 · [email protected]https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8m97-wwx3-r8vj · [email protected]https://www.vulncheck.com/advisories/freerdp-2.0.0-beta1-before-3.28.0-out-of-bounds-read-via-locatecardsbyatra-handler · [email protected]
EPSS history
Timeline
  • 15 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 13 OCT 13:27Z
    FreeRDP 2.0.0-beta1 before 3.28.0 Out-of-Bounds Read via LocateCardsByATRA Handler
    cvelistv5
  • 13 OCT 13:27Z
    FreeRDP 2.0.0-beta1 before 3.28.0 Out-of-Bounds Read via LocateCardsByATRA Handler
    cvelistv5