Vulnerability in Freerdp
CVE-2026-91962
FreeRDP before 3.31.0 contains an integer overflow in the audin Apple backends when processing FramesPerPacket values from MSG_SNDIN_OPEN messages. Attackers can supply crafted FramesPerPacket values that cause AudioQueueAllocateBuffer size computation to wrap, resulting in undersized buffer allocation and potential out-of-bounds access.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.003 (17.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 17.9% 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
Weakness classification (CWE)
References
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f5p6-88mh-59vg (vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/freerdp-before-3.31.0-integer-overflow-via-audin-a… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-91962?
- CVE-2026-91962 is a medium-severity vulnerability in Freerdp, classified under Incorrect Calculation of Buffer Size. CVSS score: 6.3/10. Published 2026-09-15.
- How severe is CVE-2026-91962?
- Medium severity. CVSS v3 base score is 6.3 out of 10.