CVE-2026-53400

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

0.10% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 1.1% 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 2026-08-17.

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

2026-07-19 12:02Z1 MO AGO

Last updated

2026-08-17 04:50Z19 DAYS AGO

Reserved

2026-06-09

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

No CWE assigned

Data version

5.2

Document digest

6d00316f2d050da2dd25337dc055d157346adc98dfb060a28d18f8b02b73ce1d

• git.kernel.orghttps://git.kernel.org/stable/c/2e57c788e71f1763445f812eba4e0b4a2fbd0646
• git.kernel.orghttps://git.kernel.org/stable/c/a4365bc41baaf67f3a5aa8556d23544e6ec7480a
• git.kernel.orghttps://git.kernel.org/stable/c/1febb174815bcae56d73587e99e8f87e02f0784d
• git.kernel.orghttps://git.kernel.org/stable/c/da9d8d9711f78deebc202d0cffcf577e45ee8621
• git.kernel.orghttps://git.kernel.org/stable/c/78793c75dc6d0ff2e4d50ad617349b328a99054e
• git.kernel.orghttps://git.kernel.org/stable/c/6a946038f2a5a8c29048c6af369d4e391448a5c5
• git.kernel.orghttps://git.kernel.org/stable/c/a4c8094bbf4c6fa68b17e3b16f6a0a1b7a14f3e0
• git.kernel.orghttps://git.kernel.org/stable/c/ba14d7cf2fe7284610a29854bdff22b2537d3ce6