SB20260815182 - Out-of-bounds read in Linux kernel sctp

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Main Vulnerability Database SB20260815182

SB20260815182 - Out-of-bounds read in Linux kernel sctp

Published: August 15, 2026

Security Bulletin ID SB20260815182
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2026-74287)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in SCTP parameter processing when parsing malformed embedded address parameters in INIT or ASCONF messages. A remote attacker can send a specially crafted SCTP parameter with an embedded address length that exceeds the enclosing parameter bounds to disclose sensitive information.

The issue affects ADD_IP, DEL_IP, and SET_PRIMARY parameters that contain embedded address parameters.


Remediation

Install update from vendor's website.

References