CVE-2026-23021

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 5.0% 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

Analyzed. 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

2026-01-31 11:39Z7 MO AGO

Last updated

2026-06-11 18:44Z2 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-401Missing Release of Memory after Effective LifetimeVariant
• CWE-772Missing Release of Resource after Effective LifetimeBase

Data version

5.2

Document digest

32ea42d03d0cc84e4284369e0d1affe6c0e7276136804abe36c81a744cf55777

• git.kernel.orghttps://git.kernel.org/stable/c/5397ea6d21c35a17707e201a60761bdee00bcc4e
• git.kernel.orghttps://git.kernel.org/stable/c/a40af9a2904a1ab8ce61866ebe2a894ef30754ba
• git.kernel.orghttps://git.kernel.org/stable/c/ac5d92d2826dec51e5d4c6854865bc5817277452
• git.kernel.orghttps://git.kernel.org/stable/c/93f18eaa190374e0f2d253e3b1a65cee19a7abe6
• git.kernel.orghttps://git.kernel.org/stable/c/471dfb97599eec74e0476046b3ef8e7037f27b34
• git.kernel.orghttps://git.kernel.org/stable/c/ce6eef731aba23a988decea1df3b08cf978f7b01
• git.kernel.orghttps://git.kernel.org/stable/c/afa27621a28af317523e0836dad430bec551eb54