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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-72347 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_connmark: reject invalid shift parameters Revision 2 of the CONNMARK target accepts user-controlled shift parameters and applies them to 32-bit mark values in connmark_tg_shift(). A shift_bits value of 32 or more triggers an undefined-shift bug when the rule is evaluated. Invalid shift_dir values are also accepted and silently fall back to the left-shift path. Reject invalid revision-2 shift parameters in connmark_tg_check() so malformed rules fail at installation time, before they can reach the packet path.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1b47026fb4b35bac850ad6e8a4ad7fc018e09ebc kernel.org
https://git.kernel.org/stable/c/230173cc6105bdfb2696d37e6e56687b003fbe63 kernel.org
https://git.kernel.org/stable/c/4eef84b09a3836919360c4232b0f16651a155eec kernel.org
https://git.kernel.org/stable/c/8ace320ac4416f5e5fbcd065309fb2dfcce787b0 kernel.org
https://git.kernel.org/stable/c/9657bb11a6376ab0a79f05d433713d6944111e9d kernel.org
https://git.kernel.org/stable/c/c3fa852d117b3fda72265e4230e3967db4a74fcf kernel.org
https://git.kernel.org/stable/c/d8ce63d928b457fba7ed1e302492dfd32293671c kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-72347
NVD Published Date:
08/15/2026
NVD Last Modified:
08/15/2026
Source:
kernel.org