CVE-2026-31718

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

0.36% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 28.6% 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

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-05-01 13:56Z4 MO AGO

Last updated

2026-08-05 12:24Z1 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-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

f2fa6538464c42064f5dafd0122dcf94de72a8cbc3606a99d7051b42cf2320a6

• git.kernel.orghttps://git.kernel.org/stable/c/0000a7780e0e446a28a273572f6ea8f7f582f694
• git.kernel.orghttps://git.kernel.org/stable/c/e33c65f011980b4ad4abfd93585ec2079856368f
• git.kernel.orghttps://git.kernel.org/stable/c/3d6682726c2d3a46d31dae88b8166786b09b03ad
• git.kernel.orghttps://git.kernel.org/stable/c/b34fc42cfe922e551f7a27d3ac3bb016e41d7dd9
• git.kernel.orghttps://git.kernel.org/stable/c/235e32320a470fcd3998fb3774f2290a0eb302a1