CVE-2026-109677
Publication date 13 October 2026
Last updated 14 October 2026
Ubuntu priority
Description
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| freerdp | 26.10 stonking | Not in release |
| 26.04 LTS resolute | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| freerdp2 | 26.10 stonking | Not in release |
| 26.04 LTS resolute | Not in release | |
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| freerdp3 | 26.10 stonking |
Not affected
|
| 26.04 LTS resolute |
Fixed in 3.30.0+dfsg-0ubuntu0.26.04.1
|
|
| 24.04 LTS noble |
Fixed in 3.30.0+dfsg-0ubuntu0.24.04.1
|
|
| 22.04 LTS jammy | Not in release |
Severity score breakdown
CVSS version:
Base score
7.1 · High
Vector: 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
Base score
6.5 · Medium
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-109677
- https://github.com/FreeRDP/FreeRDP/commit/ececc5cbd0646ef012ca178322e6ef922a11f0c1
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8m97-wwx3-r8vj
- https://www.vulncheck.com/advisories/freerdp-2.0.0-beta1-before-3.28.0-out-of-bounds-read-via-locatecardsbyatra-handler