Buffer overflow in Freerdp
CVE-2026-68580
FreeRDP before 3.29.0 contains integer overflow vulnerabilities in the audio input redirection channel (audin) across ALSA, sndio, WinMM, and OpenSL ES backends that fail to validate the FramesPerPacket parameter from RDP servers. Attackers can supply a malicious FramesPerPacket value causing allocation size wraparound, resulting in heap-based buffer overflow on ALSA or denial of service on all platforms.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (22.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Freerdp — versions 0, 3.29.0
Weakness classification (CWE)
References
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-69xf-pqrw-596x (Exploit, vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/freerdp-before-integer-overflow-via-audio-input-ch… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-68580?
- CVE-2026-68580 is a high-severity vulnerability in Freerdp, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-08-02.
- How severe is CVE-2026-68580?
- High severity. CVSS v3 base score is 7.5 out of 10.