CVE-2026-63920

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

0.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 6.1% of scored records. A rank, not a probability.

NVD base score

7.1 (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:N/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 7.1)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

758e2cda85c2d8ed63b14e85bd39bf65bbf277f43e502a7930f9e1bf7cd10846

• git.kernel.orghttps://git.kernel.org/stable/c/81394827dfb72772c50d0ae3bdfa094428a5d76d
• git.kernel.orghttps://git.kernel.org/stable/c/931b4a1f13408c2507719890f78f7227c34a0282
• git.kernel.orghttps://git.kernel.org/stable/c/08464413e628803bd10cb1df68d0138665f2f885
• git.kernel.orghttps://git.kernel.org/stable/c/a29768d56eb3798c052ad3281b05596e695a17af
• git.kernel.orghttps://git.kernel.org/stable/c/0d330eff318c0f44d4fb0ad2c2aef38f87f24c90
• git.kernel.orghttps://git.kernel.org/stable/c/a35daeabb433686234b010ebf7b53778dbd6c9b8
• git.kernel.orghttps://git.kernel.org/stable/c/eb18a1b1644e4cad978df2131e2bb9a2e6886992
• git.kernel.orghttps://git.kernel.org/stable/c/dd433671fef381fdaf7b530c631e6b782d66e224