CVE-2026-23439

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 2.9% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-07-24.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-03 15:15Z5 MO AGO

Last updated

2026-07-14 12:47Z1 MO AGO

Reserved

2026-01-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

f81ebe442dedb2473e47e72ff14e83e762897202e2e30f8f0a415ade4e29f246

• git.kernel.orghttps://git.kernel.org/stable/c/dfc96ae0074cc47b5478a59e5aa19233e434243f
• git.kernel.orghttps://git.kernel.org/stable/c/66117dbb3dbae82f86735bf727b1d59cc677afa1
• git.kernel.orghttps://git.kernel.org/stable/c/ba7c9ddcdd077942b798979edb035207374d4096
• git.kernel.orghttps://git.kernel.org/stable/c/a05a2149386f6dfb4245f522acdbef892acafc84
• git.kernel.orghttps://git.kernel.org/stable/c/9f036aa0fe46c19e938f03d10e02c23f4fffae5e
• git.kernel.orghttps://git.kernel.org/stable/c/003343985f26dfefd0c94b1fe1316a2de74428b9
• git.kernel.orghttps://git.kernel.org/stable/c/12aa4b73a67d95bc739995a2d6943aec2f9785c9
• git.kernel.orghttps://git.kernel.org/stable/c/b3a6df291fecf5f8a308953b65ca72b7fc9e015d
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html