by Kastro
Paper/Archive/CVE-2026-24677

CVE-2026-24677

FreeRDP FreeRDP — FreeRDP has a heap-buffer-overflow in ecam_encoder_compress_h264

EPSS 0.6%CVSS 9.1
critical.is priorityof 100
37
CVSS 9.1 (NVD)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 46.4.464 × 209.3No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, ecam_encoder_compress_h264 trusts server-controlled dimensions and does not validate the source buffer size, leading to an out-of-bounds read in sws_scale. This vulnerability is fixed in 3.22.0.

Affected

ProductAffectedFixed inSource
FreeRDP< 3.22.0–CNA

Scores by source

NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
GitHub_M (CNA)8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refgithub.com/FreeRDP/FreeRDP/security/advisories/GHSA-xw37-j744-f8v7refgithub.com/FreeRDP/FreeRDP/commit/d2d4f449312ddafd4a4c6c8a4f856c7f0d44a3b5