Vulnerability Description
FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the rdpdr_dump_packet function due to 32-bit unsigned integer wraparound in buffer bounds validation. A malicious RDP server can send a crafted RDPDR packet with computerNameLen set to 0xFFFFFFF0 to bypass bounds checks and trigger memory reads past the packet buffer, causing client crashes or heap disclosure in logs.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-c5gr-hmqp-pwj4
- https://www.vulncheck.com/advisories/freerdp-before-3.31.0-out-of-bounds-read-vi
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-c5gr-hmqp-pwj4
FAQ
What is CVE-2026-91950?
CVE-2026-91950 is a vulnerability with a CVSS score of 6.5 (MEDIUM). FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the rdpdr_dump_packet function due to 32-bit unsigned integer wraparound in buffer bounds validation. A malicious RDP server can s...
How severe is CVE-2026-91950?
CVE-2026-91950 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-91950?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.