CVE-2026-24681 FreeRDP has a heap-use-after-free in urb_bulk_transfer_cb
A use-after-free vulnerability in FreeRDP allows attackers to execute arbitrary code or cause denial of service via asynchronous bulk transfer completions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-24681?
CVE-2026-24681 is a high-severity use after free vulnerability in Freerdp Freerdp, published on 9 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, aAsynchronous bulk transfer completions can use a freed channel callback after URBDRC channel close, leading to a use after free in urb_write_completion. This vulnerability is fixed in 3.22.0.
Weakness: CWE-416
Which versions are affected by CVE-2026-24681?
It affects 1 product.
Products include Freerdp Freerdp.
How do I fix CVE-2026-24681?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-24681 being exploited?
There is no known exploitation of CVE-2026-24681 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-2026-24681, GHSA-ccvv-hg2w-6x9j, UBUNTU-CVE-2026-24681.