CVE-2026-63869

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 13.8% of scored records. A rank, not a probability.

NVD base score

7.6 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Important. 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 14:18Z1 MO AGO

Last updated

2026-08-05 12:36Z1 MO AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.6)

CNA CVSS vector

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

Weaknesses

• CWE-1335Incorrect Bitwise Shift of IntegerBase

Data version

5.2

Document digest

c4c58a3e2c867d5da0e6afc767d228bd5dd163f13714d5227a1b682f52520540

• git.kernel.orghttps://git.kernel.org/stable/c/f6d3dc8e8492bf8435e0b23c99472af7bafd6b44
• git.kernel.orghttps://git.kernel.org/stable/c/9b40c59bab08f2a99abf969cc0bb92fa49de004b
• git.kernel.orghttps://git.kernel.org/stable/c/033ce021a220913ac02416fcb5ac883a9ff8b6c7
• git.kernel.orghttps://git.kernel.org/stable/c/6c0cf89f36ac0c0fd8687a4ccdce2efb23a9c663