CVE-2026-31389

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

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 1.9% of scored records. A rank, not a probability.

NVD base score

7.8 (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:H/I:H/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

2026-08-05 12:22Z1 MO AGO

Reserved

2026-03-09

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-416Use After FreeVariant
• CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

dbd9b690553ff05382ef5bbf61fbdd1fcb7cc44725ecdc491f7c50caf548fa80

• git.kernel.orghttps://git.kernel.org/stable/c/0e23f50086da7d0b183dfeac26021acfcdee086b
• git.kernel.orghttps://git.kernel.org/stable/c/6bbd385b30c7fb6c7ee0669e9ada91490938c051
• git.kernel.orghttps://git.kernel.org/stable/c/afe27c1f43aa57530011f419be6ddf71306565d2
• git.kernel.orghttps://git.kernel.org/stable/c/80f3e8cd2b4ad355b2ad2024cf423f6d183404f7
• git.kernel.orghttps://git.kernel.org/stable/c/23b51bad2eb8787aa74324cfccefb258515ae5ba
• git.kernel.orghttps://git.kernel.org/stable/c/8634e05b08ead636e926022f4a98416e13440df9
• 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