CVE-2026-31648

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 2.1% 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

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

2026-04-24 14:45Z4 MO AGO

Last updated

2026-08-05 12:24Z1 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-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

ec5f15fe990ef2175452f5954a5b1fa5d41ecf0f87eb3ad1f963a76a7d6f8fc4

• git.kernel.orghttps://git.kernel.org/stable/c/88591194df736a508dd5461ab2167a61e98caac1
• git.kernel.orghttps://git.kernel.org/stable/c/633ab680c405ac390e6bec5b74aaf46197c837b6
• git.kernel.orghttps://git.kernel.org/stable/c/576543bedd616254032d4ebe54a90076f9e31740
• git.kernel.orghttps://git.kernel.org/stable/c/9316a820b9aae07d44469d6485376dad824c5b3f
• git.kernel.orghttps://git.kernel.org/stable/c/f58df566524ebcdfa394329c64f47e3c9257516e