CVE-2026-6325 Out-of-bounds write in SetSuitesHashSigAlgo on oversized signature algorithms list
An out-of-bounds write in wolfSSL allows attackers to cause memory corruption, potentially leading to code execution or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-6325?
CVE-2026-6325 is a low-severity memory corruption vulnerability in Wolfssl Wolfssl, published on 25 Jun 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Out-of-bounds write in SetSuitesHashSigAlgo when processing an oversized signature algorithms list, allowing a write past the bounds of the destination buffer.
Weakness: CWE-787
Which versions are affected by CVE-2026-6325?
It affects 1 product.
Products include Wolfssl Wolfssl.
How do I fix CVE-2026-6325?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-6325 being exploited?
There is no known exploitation of CVE-2026-6325 in the wild and no public exploit code.
Other vulnerabilities in Wolfssl Wolfssl
Sources
Also known as DEBIAN-CVE-2026-6325, GHSA-xpf5-wwvx-w945, JLSEC-2026-746, UBUNTU-CVE-2026-6325.