CVE-2026-63913

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

0.97% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 59.3% of scored records. A rank, not a probability.

NVD base score

8.2 (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:N/I:L/A:H

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-07-27.

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

2026-07-19 14:55Z1 MO AGO

Last updated

2026-08-05 12:37Z1 MO AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.2)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Weaknesses

• CWE-358Improperly Implemented Security Check for StandardBase

Data version

5.2

Document digest

94e478c7e4aec302fa7c52cf66ee051f4d8c24273204c7eee1b46245318be0b9

• git.kernel.orghttps://git.kernel.org/stable/c/2006979a15af5404bf932a325357683c0bac1656
• git.kernel.orghttps://git.kernel.org/stable/c/6476c17d536dbd321c073242e762ddb2713a1238
• git.kernel.orghttps://git.kernel.org/stable/c/f5547bebc416d56f56fb5b86dc20aabfa42165a0
• git.kernel.orghttps://git.kernel.org/stable/c/2bb6d82b586ea5a4cb73bbdd6b7432e96096bc77
• git.kernel.orghttps://git.kernel.org/stable/c/f206def4e86d810f927ba1d8e322ea72b29bce58
• git.kernel.orghttps://git.kernel.org/stable/c/b98ab51c45c5608a1c19ce7fd17a3032469bb83f
• git.kernel.orghttps://git.kernel.org/stable/c/d67c6adee8d1b65330d0174c4c367faba14e80a8
• git.kernel.orghttps://git.kernel.org/stable/c/bed6e04be8e6b9133d8b16d5a42d0e0ce674fa9a