CVE-2026-55319

Published Nov 10, 2026 Modified Nov 10, 2026

Description

In thread_free of thread.c, there is a possible way to corrupt kernel heap metadata on thread creation failure due to memory corruption. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Is your site exposed to CVE-2026-55319?

Run a free security scan — no signup, results in seconds.

EPSS — Exploit Prediction

0.0012
Probability of exploitation
0.02%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Frequently Asked Questions

What is CVE-2026-55319? +
In thread_free of thread.c, there is a possible way to corrupt kernel heap metadata on thread creation failure due to memory corruption. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
How do I check if I'm vulnerable to CVE-2026-55319? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Don't wait for an exploit

Scan your website for vulnerabilities like CVE-2026-55319 — free, no signup required.

Patch and protect

Block known exploits with a web application firewall while you patch, keep your own devices clean, or test the fix on a fresh server.

Compare VPS prices →

Affiliate links: we may earn a commission, your price stays the same.