CVE-2026-53268

Severity CVSS v4.0:

Pending analysis

Type:

CWE-125 Out-of-bounds Read

Publication date:

25/06/2026

Last modified:

08/07/2026

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack_irc: fix possible out-of-bounds read When parsing fails after we&#39;ve matched the command string we should bail out instead of trying to match a different command. This helper should be deprecated, given prevalence of TLS I doubt it has any relevance in 2026.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.20 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): High

Base Score 3.x

8.20

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	2.6.20 (including)	5.10.259 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.210 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.176 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.143 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.94 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.18.36 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.19 (including)	7.0.13 (excluding)
cpe:2.3:o:linux:linux_kernel:7.1:rc1::::::
cpe:2.3:o:linux:linux_kernel:7.1:rc2::::::
cpe:2.3:o:linux:linux_kernel:7.1:rc3::::::
cpe:2.3:o:linux:linux_kernel:7.1:rc4::::::
cpe:2.3:o:linux:linux_kernel:7.1:rc5::::::
cpe:2.3:o:linux:linux_kernel:7.1:rc6::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-53268

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools