CVE-2026-52999

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

0.51% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 41.6% of scored records. A rank, not a probability.

NVD base score

9.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-15.

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

2026-06-24 16:29Z2 MO AGO

Last updated

2026-08-05 12:32Z1 MO AGO

Reserved

2026-06-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

942a42c1194354b535fadcb47fd7103f1eca5d02a9c682eb0d47ab4343764d5c

• git.kernel.orghttps://git.kernel.org/stable/c/0145548346c4a30981a870a8ca00eac46ba27e85
• git.kernel.orghttps://git.kernel.org/stable/c/1c136f2c44a5913646bac85303612fd0825197a0
• git.kernel.orghttps://git.kernel.org/stable/c/1e19a07291bb8682c14c39a64725a3ae54ab8ccc
• git.kernel.orghttps://git.kernel.org/stable/c/32e50f92c7cf3f4eba29622179a5fcdc2aebab41
• git.kernel.orghttps://git.kernel.org/stable/c/70a3f31d25cf2ec9d4ddfa408120171ead955623
• git.kernel.orghttps://git.kernel.org/stable/c/21883587593d7c8bb519a79460a0b5bc5ffbdabd
• git.kernel.orghttps://git.kernel.org/stable/c/edb78a142d2e5948e63647c0646aa7e7886935f0
• git.kernel.orghttps://git.kernel.org/stable/c/f5ca450087c3baf3651055e7a6de92600f827af3