SB2026082457 - Improper Check or Handling of Exceptional Conditions in Linux kernel sched

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Main Vulnerability Database SB2026082457

SB2026082457 - Improper Check or Handling of Exceptional Conditions in Linux kernel sched

Published: August 24, 2026

Security Bulletin ID SB2026082457
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2026-74704)

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper handling of malformed packets in sch_cake ACK filter when parsing malformed IP headers. A remote attacker can send a specially crafted packet to cause a denial of service.

The issue may result in warning log flooding, or a kernel panic when panic_on_warn is enabled.


Remediation

Install update from vendor's website.

References