CVE-2026-23066

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 3.2% 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 2026-06-17.

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

2026-02-04 16:07Z7 MO AGO

Last updated

2026-08-05 12:20Z1 MO AGO

Reserved

2026-01-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-674Uncontrolled RecursionClass
• CWE-416Use After FreeVariant

Data version

5.2

Document digest

fafdbf737d2ffb80f2faabb05f14b0c2e6c451eff1481db0768b5a5bacb52c2f

• git.kernel.orghttps://git.kernel.org/stable/c/8fd3b5e297854a4da0f273169baf4b1b7b257b97
• git.kernel.orghttps://git.kernel.org/stable/c/c198628f3fca5c874d93874c233014d336e09f64
• git.kernel.orghttps://git.kernel.org/stable/c/c6cebcb4e0b3140ec2ace45c020a9049527385d1
• git.kernel.orghttps://git.kernel.org/stable/c/0464bf75590da75b8413c3e758c04647b4cdb3c6
• git.kernel.orghttps://git.kernel.org/stable/c/cf969bddd6e69c5777fa89dc88402204e72f312a
• git.kernel.orghttps://git.kernel.org/stable/c/930114425065f7ace6e0c0630fab4af75e059ea8
• git.kernel.orghttps://git.kernel.org/stable/c/2c28769a51deb6022d7fbd499987e237a01dd63a