CVE-2026-45988

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

0.46% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 37.7% of scored records. A rank, not a probability.

NVD base score

9.8 (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:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

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

2026-05-27 12:55Z3 MO AGO

Last updated

2026-08-05 12:29Z1 MO AGO

Reserved

2026-05-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase

Data version

5.2

Document digest

90bd4296faa184318217d4f48ed7746738f31f1461b84810841eb1b958c32851

• git.kernel.orghttps://git.kernel.org/stable/c/d61482be4aae1835b78875761206241835a7510e
• git.kernel.orghttps://git.kernel.org/stable/c/7b89868305052b94a91b708c462bc2281fa42a4a
• git.kernel.orghttps://git.kernel.org/stable/c/76cb9a2d252274adfae6e293a292434631a7d472
• git.kernel.orghttps://git.kernel.org/stable/c/f55b383070170e988e4dec28be2af1714d258521
• git.kernel.orghttps://git.kernel.org/stable/c/0422e7a4883f25101903f3e8105c0808aa5f4ce9