CVE WatchAug 7, 2026

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 v

CVSS

6.2

Medium

EPSS

0.1%

KEV

—

Exploit Today

0-100

Published: Aug 7, 2026 · Last modified: Aug 7, 2026 · CWE-122

EPSS · 30d

0.1%EPSS · 30 days0.1%

2026-08-072026-08-08

Technical description

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 miscalculate memory allocation for nested attributes. This leads to a memory corruption issue, specifically a heap out-of-bounds write, which can crash the p11-kit RPC parsing process, resulting in a Denial of Service (DoS). This vulnerability is only exploitable on 32 bit systems.

Official references

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