Access Restriction Bypass Affecting torvalds/linux package, versions [2.6.12,5.10.271)[5.11,5.15.222)[5.16,6.1.189)[6.2,6.6.158)[6.7,6.12.111)[6.13,6.18.53)[6.19,7.2.7)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.18% (7th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-20824906
  • published11 Oct 2026
  • disclosed25 Sept 2026
  • creditUnknown

Introduced: 25 Sep 2026

NewCVE-2026-98123  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass in the sctp_verify_asconf process. An attacker can cause a denial of service by sending a crafted ASCONF-ACK parameter that leads to an infinite loop or out-of-bounds read. This is only exploitable if the attacker is a remote peer on an ADD-IP enabled association with an outstanding ASCONF, and can authenticate the chunk using publicly exchanged parameters.

Note: The Linux kernel project assigns a CVE to every bug fix it ships, whether or not the bug has been shown to be exploitable. This advisory was generated from that process and has not been individually assessed for exploitability. See the kernel's CVE process documentation: https://github.com/torvalds/linux/blob/master/Documentation/process/cve.rst

CVSS Base Scores

version 4.0
version 3.1