CVE-2026-64123

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 2.5% 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

Analyzed. NVD last modified this record on 2026-08-13.

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 15:40Z1 MO AGO

Last updated

2026-08-05 12:39Z1 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-416Use After FreeVariant
• CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

38548f30b99ee71af2b5061f36d498890bac870e9f3ed690e1b650d5d2a2b970

• git.kernel.orghttps://git.kernel.org/stable/c/0ea70fb46940620848c08d9d399455c9e82fecdb
• git.kernel.orghttps://git.kernel.org/stable/c/8be6685cdd1255bcc85f9b59e4bfc313aefc5c1b
• git.kernel.orghttps://git.kernel.org/stable/c/c5580114e0492bcd2e0a37613ed4c311e3fa3d4d
• git.kernel.orghttps://git.kernel.org/stable/c/7713f4aafb577ff49fa67f0488d9c7dddc64d6ce
• git.kernel.orghttps://git.kernel.org/stable/c/6324423a8e6591f41a16c09a8f9a84e554ac147c
• git.kernel.orghttps://git.kernel.org/stable/c/8c3af18bb0d7c921a5219194037509463eb2ffde
• git.kernel.orghttps://git.kernel.org/stable/c/aaec7096f9961eb223b5b149abe9495525c205d9