CVE-2026-64086

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

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 3.5% 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 2026-09-03.

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 15:39Z1 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-787Out-of-bounds WriteBase

Data version

5.2

Document digest

a33e02c70e5a3d94e88b9c53953aa5cad827971410d21a74284cea3a791630ad

• git.kernel.orghttps://git.kernel.org/stable/c/397d3f523bfff2f4e3dacf9b1339bd76dc207f78
• git.kernel.orghttps://git.kernel.org/stable/c/472744f69d25a2d5111ad62f1d62579dce2c13c8
• git.kernel.orghttps://git.kernel.org/stable/c/528a9f88e88502d0c2f2052a279415074cd83715
• git.kernel.orghttps://git.kernel.org/stable/c/d94ceb16e55b6d8019ab069e357c76ac42f0ffbc
• git.kernel.orghttps://git.kernel.org/stable/c/bd5be3fa5de6dbf61f1b3cec6b79c2c2f8065694
• git.kernel.orghttps://git.kernel.org/stable/c/2279c342d94eca225bf9f301c8806a05a1c81619
• git.kernel.orghttps://git.kernel.org/stable/c/a6c802145a8de0830bca803c6d415f7e9e683624
• git.kernel.orghttps://git.kernel.org/stable/c/487566cb1ccdf3756fdd7bf8d875e612ff3169bb