CVE-2026-63911

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

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 5.8% 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 2026-07-27.

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 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 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-1341Multiple Releases of Same Resource or HandleBase

Data version

5.2

Document digest

c11575b29673133156f72bd2a9a5fa1ae23079b7e1222e9c2e1075fb70802507

• git.kernel.orghttps://git.kernel.org/stable/c/9327252e04626d4bb02ca8c0c108fbe8eabf0c5a
• git.kernel.orghttps://git.kernel.org/stable/c/dfb9f6cbfa9826655a49698cf90eb800fce2178e
• git.kernel.orghttps://git.kernel.org/stable/c/7f83d174073234839aea176f265e517e0d50a1d2