Integer Overflow Vulnerability in p11-kit Affects 32-Bit Systems
CVE-2026-18938

6.2MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
7 August 2026

What is CVE-2026-18938?

An integer overflow vulnerability in p11-kit allows local attackers or individuals with equivalent access to exploit memory allocation flaws via specially crafted messages. This can lead to memory corruption characterized by a heap out-of-bounds write, causing the p11-kit RPC parsing to become unstable and crash, ultimately resulting in a Denial of Service (DoS). This issue primarily affects 32-bit systems, making it crucial for users to be aware and take preventive measures.

References

https://access.redhat.com/security/cve/CVE-2026-18938
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2478995
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
6.2
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered by Found by AISLE in partnership with Red Hat.
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