CVE-2026-63817

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 3.3% 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

Awaiting Analysis. NVD last modified this record on 2026-08-17.

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

2026-07-19 12:02Z1 MO AGO

Last updated

2026-08-17 04:51Z19 DAYS AGO

Reserved

2026-07-19

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

No CWE assigned

Data version

5.2

Document digest

025efa3b3ed0123ac99effc05911c532df3cb5887ccc5b6165f6a2c13785ebac

• git.kernel.orghttps://git.kernel.org/stable/c/fcc051d377a9701a452e7663a1a8223c26225df9
• git.kernel.orghttps://git.kernel.org/stable/c/29115b8c9172d34e67ab26cc4f6c209b7a236d7a
• git.kernel.orghttps://git.kernel.org/stable/c/13e4b59d3a9413f66f116fa6c4828519b960a5ea
• git.kernel.orghttps://git.kernel.org/stable/c/16161444c30d8dff9428abbae42b72ce4e32a932
• git.kernel.orghttps://git.kernel.org/stable/c/77f216ff9ce5cde8eed9f6d12707e906dffdc9f7
• git.kernel.orghttps://git.kernel.org/stable/c/0969926d987bbde9a1aa49da317582ba37095805
• git.kernel.orghttps://git.kernel.org/stable/c/5073c66a96a9c23c0c2533ed4ed06e42f9021208