CVE-2025-6271 swftools wav2swf wav.c wav_convert2mono out-of-bounds
A local attacker can trigger an out-of-bounds read in swftools wav2swf, potentially causing a crash or leaking memory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-6271?
CVE-2025-6271 is a medium-severity memory corruption vulnerability in Swftools Swftools, published on 19 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability, which was classified as problematic, was found in swftools up to 0.9.2. This affects the function wav_convert2mono in the library lib/wav.c of the component wav2swf. The manipulation leads to out-of-bounds read. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-6271?
It affects 1 product.
Products include Swftools Swftools.
How do I fix CVE-2025-6271?
No fix has been published for CVE-2025-6271 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-6271 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6271 exists.
Other vulnerabilities in Swftools Swftools
Sources
Also known as GHSA-83f6-rpg2-3v27, UBUNTU-CVE-2025-6271.