Buffer overflow in Red Hat Enterprise Linux 10

CVE-2026-18938

A flaw was found in p11-kit. A local attacker, or one with equivalent access to a reachable RPC channel, could exploit an integer overflow vulnerability. By sending specially crafted messages, the attacker can cause the system to miscalcul…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-18938?
CVE-2026-18938 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Heap-based Buffer Overflow. CVSS score: 6.2/10. Published 2026-08-07.
How severe is CVE-2026-18938?
Medium severity. CVSS v3 base score is 6.2 out of 10.