CVE-2026-45999

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 3.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-19.

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

2026-05-27 12:55Z3 MO AGO

Last updated

2026-08-05 12:29Z1 MO AGO

Reserved

2026-05-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

• CWE-191Integer Underflow (Wrap or Wraparound)Base

Data version

5.2

Document digest

11a75ce62c7b211a76ccb0b64dfedf368356853d9673ef5a7ba434c2b71cd3c6

• git.kernel.orghttps://git.kernel.org/stable/c/778acd52e9497806fbd2cea7f770c41d6850fc48
• git.kernel.orghttps://git.kernel.org/stable/c/118ff71ff09ebaf323a09af9e911517321a299f4
• git.kernel.orghttps://git.kernel.org/stable/c/43a878639b90e9721ffa5eb616a7e6d8454adef3
• git.kernel.orghttps://git.kernel.org/stable/c/f1374fa6e57fd836623668d782ded9244cfd2938
• git.kernel.orghttps://git.kernel.org/stable/c/c9ce18e6bb2c467ec85756dc7989b547b7584fee
• git.kernel.orghttps://git.kernel.org/stable/c/bbbbb3f0d7864238a8da2a94cd6ec013fee06a2e
• git.kernel.orghttps://git.kernel.org/stable/c/21e161de2dc660b1bb70ef5b156ab8e6e1cca3ab