CVE-2026-79516 Denial of service in n/a
Attackers can cause a Denial of Service via crafted input due to an out-of-bounds read in the stb_sprintf library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-79516?
CVE-2026-79516 is a medium-severity denial of service vulnerability in n/a, published on 9 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An out-of-bounds read in the stbsp_vsnprintf function (stb_sprintf.h) of nothings stb commit 31c1ad3 allows attackers to cause a Denial of Service (DoS) via sending a crafted input.
Weakness: CWE-125
Which versions are affected by CVE-2026-79516?
How do I fix CVE-2026-79516?
No fix has been published for CVE-2026-79516 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-79516 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-79516 exists.
Sources
Also known as DEBIAN-CVE-2026-79516, GHSA-65qg-r8w5-5wxq, UBUNTU-CVE-2026-79516.