CVE-2026-31781

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

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

2026-05-01 14:15Z4 MO AGO

Last updated

2026-05-23 16:05Z3 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-515Covert Storage ChannelBase

Data version

5.2

Document digest

0da5b2870fa11a967603329b7a5a0d232276f50172910aefe7e0fa410e20e8db

• git.kernel.orghttps://git.kernel.org/stable/c/46a60ee8956ef1975f00455f614761c7ecedc09d
• git.kernel.orghttps://git.kernel.org/stable/c/5bb398991f378ef74d90b14a6ea8b61ff96cc03a
• git.kernel.orghttps://git.kernel.org/stable/c/d59c5d8539662d95887b4564f3f72ad38076a2d5
• git.kernel.orghttps://git.kernel.org/stable/c/489f2ef2b908898d01df697dc4fe1476674be640
• git.kernel.orghttps://git.kernel.org/stable/c/4a41c2b18fc05d30b718d2602cac339eae710b34
• git.kernel.orghttps://git.kernel.org/stable/c/f0e441be08a2eab10b2d06fccfa267ee599dd6b3
• git.kernel.orghttps://git.kernel.org/stable/c/27ef84bba9b9d7b03418c60fbc6069ea0e87b13c
• git.kernel.orghttps://git.kernel.org/stable/c/f8995c2df519f382525ca4bc90553ad2ec611067