CVE-2026-64555

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 2.7% of scored records. A rank, not a probability.

NVD base score

8.8 (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:C/C:H/I:H/A:H

NVD analysis status

Received. NVD last modified this record on 2026-08-17.

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

2026-07-27 20:10Z1 MO AGO

Last updated

2026-08-17 04:57Z18 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.2

Document digest

1041bb47a2e8d12d051b88a44b40ed000cd9e69ed6b979cb91c7e35f35e50ef8

• git.kernel.orghttps://git.kernel.org/stable/c/10a568010e827108d149779908850afaec898846
• git.kernel.orghttps://git.kernel.org/stable/c/884b44256041ec6b2dcbe8e6a67384d26145cba1
• git.kernel.orghttps://git.kernel.org/stable/c/dd3b237eb7780d65eae296d3d3a70012b6e7a02f
• git.kernel.orghttps://git.kernel.org/stable/c/ff1022c3de46753eb7eba2f6efd990569e66ff95