Heap-Based Buffer Overflow in FreeRDP by FreeRDP Foundation
CVE-2026-110837

6.1MEDIUM

Key Information:

Vendor

Freerdp

Status
Freerdp
Vendor
CVE Published:
14 October 2026

What is CVE-2026-110837?

A heap-based buffer overflow vulnerability exists in FreeRDP versions prior to 3.32.0 when configured with WITH_LAME=ON and WITH_DSP_FFMPEG=OFF. This vulnerability allows a malicious RDP server to exploit the way MP3 audio is decoded, causing decoded samples to overflow the heap allocation, resulting in a crash of the FreeRDP client. The underlying issue arises from an incorrect offset in the right-channel PCM pointer treated as short elements, which can lead to serious stability issues for affected users.

Affected Version(s)

FreeRDP 2.0.0 < 3.32.0

FreeRDP 3.32.0

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GH...
vendor-advisory
https://www.vulncheck.com/advisories/freerdp-2.0.0-before...
third-party-advisory

CVSS V4

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kushalkhemka
mayank-jangid-moon
skigeek16
opensec-intelligence
.