CVE-2026-31444

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

0.45% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 38.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2026-04-22 13:53Z6 MO AGO

Last updated

2026-08-05 12:22Z2 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant
• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

ae166ab0b266844621af6ee5bf9dc36e9ca27291bcbef6ef37ab6df2144522dc

• git.kernel.orghttps://git.kernel.org/stable/c/9e785f004cbc56390479b77375726ea9b0d1a8a6
• git.kernel.orghttps://git.kernel.org/stable/c/7de55bba69cbf0f9280daaea385daf08bc076121
• git.kernel.orghttps://git.kernel.org/stable/c/a5c6f6d6ceefed2d5210ee420fb75f8362461f46
• git.kernel.orghttps://git.kernel.org/stable/c/6d7e5a918c1d0aad06db0e17677b66fc9a471021
• git.kernel.orghttps://git.kernel.org/stable/c/48623ec358c1c600fa1e38368746f933e0f1a617