CVE-2026-91962 FreeRDP before 3.31.0 Integer Overflow via audin Apple backends
Attackers can trigger an integer overflow in FreeRDP's audio processing, leading to undersized buffers and potential code execution or crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-91962?
CVE-2026-91962 is a medium-severity vulnerability in Freerdp Freerdp, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-131
Which versions are affected by CVE-2026-91962?
It affects 1 product.
Products include Freerdp Freerdp.
How do I fix CVE-2026-91962?
Upgrade to a fixed version.
Is CVE-2026-91962 being exploited?
There is no known exploitation of CVE-2026-91962 in the wild and no public exploit code.
Other vulnerabilities in Freerdp Freerdp
- CVE-2021-37594 Other in n/a
- CVE-2021-37595 Other in n/a
- CVE-2026-67305 FreeRDP Windows Client before 3.29.0 Heap Buffer Overflow via Cliprdr
- CVE-2026-66402 FreeRDP before 3.29.0 TLS Certificate Identity Validation Bypass
- CVE-2026-67289 FreeRDP before 3.29.0 HTTP Proxy Request Injection via Redirection
Sources
Also known as DEBIAN-CVE-2026-91962, GHSA-4xh7-7c9f-cg88, GHSA-f5p6-88mh-59vg, UBUNTU-CVE-2026-91962.