CVE-2026-31630

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

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 3.2% 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 2026-06-17.

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

2026-04-24 14:44Z4 MO AGO

Last updated

2026-08-05 12:23Z1 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-131Incorrect Calculation of Buffer SizeBase

Data version

5.2

Document digest

5eaf5ff4f3b8f8cd3d897cb170b8ea7189afdbeb5d338b82cd0104868574bf7b

• git.kernel.orghttps://git.kernel.org/stable/c/386c86412608d3449006a318a662cbcd6ca1f668
• git.kernel.orghttps://git.kernel.org/stable/c/235b2115de892eab2e107a42efa7a4347baaa80b
• git.kernel.orghttps://git.kernel.org/stable/c/625af53a1564e31bb2df9adc3739df46137f46c1
• git.kernel.orghttps://git.kernel.org/stable/c/db297c78ce537c9ac96f0eda9b25ad72c8caefa9
• git.kernel.orghttps://git.kernel.org/stable/c/10ebed83f9f6414af4e85bc85ffaeda7effdd874
• git.kernel.orghttps://git.kernel.org/stable/c/a44ce6aa2efb61fe44f2cfab72bb01544bbca272