PulseLinuxLINUX UPDATE INTELLIGENCE
CVE Database›Document archive›CVE-2026-52998

CVE-2026-52998

kernel: netfilter: nfnetlink_osf: fix potential NULL dereference in ttl check

Loading…

Severity

Moderate

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · June 24, 2026

Updated · August 5, 2026

Description

A flaw was found in the Linux kernel's Netfilter subsystem, specifically within the nfnetlink_osf module. The nf_osf_ttl() function could attempt to access a device pointer that was not properly validated, leading to a potential null pointer dereference. This vulnerability could allow a local attacker to trigger a system crash, resulting in a Denial of Service (DoS).

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-476 · NULL Pointer Dereference