CVE-2026-31503

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 2.4% 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 2026-07-14.

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

2026-04-22 13:54Z4 MO AGO

Last updated

2026-07-14 12:48Z1 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-253Incorrect Check of Function Return ValueBase

Data version

5.2

Document digest

6c9406d3d4eb6d3f5ee8737ac86d80866c26bdf82bb9f3fc80a925bd8c0fcd94

• git.kernel.orghttps://git.kernel.org/stable/c/d6ace0dbcbb7fd285738bb87b42b71b01858c952
• git.kernel.orghttps://git.kernel.org/stable/c/2297e38114316b26ae02f2d205c49b5511c5ed55
• git.kernel.orghttps://git.kernel.org/stable/c/f1bed05a832ae79be5f7a105da56810eaa59a5f1
• git.kernel.orghttps://git.kernel.org/stable/c/18d84c45def3671d5c89fbdd5d4ab8a3217fe4b4
• git.kernel.orghttps://git.kernel.org/stable/c/0a360f7f73a06ac88f18917055fbcc79694252d7
• git.kernel.orghttps://git.kernel.org/stable/c/e537dd15d0d4ad989d56a1021290f0c674dd8b28
• 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