CVE-2026-64188

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

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 2.0% 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 2026-08-11.

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

2026-07-20 16:27Z1 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

0f08102fa619d801c4cb27b538c3a8d9e22135209e47975a85c8439fa534e3fc

• git.kernel.orghttps://git.kernel.org/stable/c/c4e676c3505c5058922dc1a6f1ded795f6758135
• git.kernel.orghttps://git.kernel.org/stable/c/9918698cf3aee4032e12bb42fd5a951dc465339b
• git.kernel.orghttps://git.kernel.org/stable/c/310b93246bfec7d4452507e0c15477377ed9f025
• git.kernel.orghttps://git.kernel.org/stable/c/1078ae8175777e80c9637996fb4a46c55f0ce576
• git.kernel.orghttps://git.kernel.org/stable/c/41e06fcc5df0774d212e70c5b503fc769492bce3
• git.kernel.orghttps://git.kernel.org/stable/c/8b17adf6d4fb6bf61fa4c3f58366a7c082799a71
• git.kernel.orghttps://git.kernel.org/stable/c/f193e38cb257d033060b63f1cfd94af076b3a2ab
• git.kernel.orghttps://git.kernel.org/stable/c/d00c953a8f69921f484b629801766da68f27f658