CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2026-33986
High (7.5) in freerdp freerdp. EPSS 0.3% chance of exploitation in the next 30 days.
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, in yuv_ensure_buffer() in libfreerdp/codec/h264.c, h264->width and h264->height are updated before the reallocation loop. If any winpr_aligned_recalloc() call fails, the function returns FALSE but width/height are already inflated. This issue has been patched in version 3.24.2.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-122, CWE-131
- Published
- Modified
- Record from
- the NVD, synced
Affected
- freerdp:freerdp
References
- https://github.com/FreeRDP/FreeRDP/commit/f6e43e208958140074ae9bb93cd0c9045a371c77
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h6qw-wxvm-hf97
- https://access.redhat.com/security/cve/CVE-2026-33986
- https://bugzilla.redhat.com/show_bug.cgi?id=2453221
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33986.json