FreeRDP before 3.29.0 contains a heap out-of-bounds read vulnerability in the TSMF FFmpeg decoder when parsing AVC1 MPEG2VIDEOINFO media types with… (CVE-2026-67290)
FreeRDP before 3.29.0 contains a heap out-of-bounds read vulnerability in the TSMF FFmpeg decoder when parsing AVC1 MPEG2VIDEOINFO media types with insufficient ExtraData. Attackers can send malformed media format data from a server to trigger a crash by reading fixed offsets without validating source buffer length.
AI Analysis
Technical Summary
The vulnerability in FreeRDP prior to version 3.29.0 is a heap out-of-bounds read (CWE-125) in the TSMF FFmpeg decoder component. It is triggered when the decoder parses AVC1 MPEG2VIDEOINFO media types that contain insufficient ExtraData. An attacker controlling the server can send malformed media format data that causes the client to read beyond the allocated heap buffer, resulting in a crash. This vulnerability does not impact confidentiality or integrity but causes a denial of service via application crash. The CVSS 3.1 base score is 7.5 (high severity) with network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to availability.
Potential Impact
Successful exploitation results in a denial of service condition due to a heap out-of-bounds read causing the FreeRDP client to crash. There is no reported impact on confidentiality or integrity. The vulnerability can be triggered remotely by a malicious server sending crafted media format data.
Mitigation Recommendations
A fix is available in FreeRDP version 3.29.0 and later. Users should upgrade to version 3.29.0 or newer to remediate this vulnerability. Patch status is confirmed by the version boundary in the description. No additional mitigations are specified.
FreeRDP before 3.29.0 contains a heap out-of-bounds read vulnerability in the TSMF FFmpeg decoder when parsing AVC1 MPEG2VIDEOINFO media types with… (CVE-2026-67290)
Description
FreeRDP before 3.29.0 contains a heap out-of-bounds read vulnerability in the TSMF FFmpeg decoder when parsing AVC1 MPEG2VIDEOINFO media types with insufficient ExtraData. Attackers can send malformed media format data from a server to trigger a crash by reading fixed offsets without validating source buffer length.
CVSS v3.1
Score 7.5high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in FreeRDP prior to version 3.29.0 is a heap out-of-bounds read (CWE-125) in the TSMF FFmpeg decoder component. It is triggered when the decoder parses AVC1 MPEG2VIDEOINFO media types that contain insufficient ExtraData. An attacker controlling the server can send malformed media format data that causes the client to read beyond the allocated heap buffer, resulting in a crash. This vulnerability does not impact confidentiality or integrity but causes a denial of service via application crash. The CVSS 3.1 base score is 7.5 (high severity) with network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to availability.
Potential Impact
Successful exploitation results in a denial of service condition due to a heap out-of-bounds read causing the FreeRDP client to crash. There is no reported impact on confidentiality or integrity. The vulnerability can be triggered remotely by a malicious server sending crafted media format data.
Mitigation Recommendations
A fix is available in FreeRDP version 3.29.0 and later. Users should upgrade to version 3.29.0 or newer to remediate this vulnerability. Patch status is confirmed by the version boundary in the description. No additional mitigations are specified.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-v8g5-qxq2-3959
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-67290"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Threat ID: 6a6e6298bf32cb7a344f9d25
Added to database: 08/01/2026, 21:18:16 UTC
Last enriched: 08/01/2026, 21:24:22 UTC
Last updated: 09/15/2026, 10:01:33 UTC
Views: 60
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