CVE-2023-53520

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

0.11% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 1.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

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

2025-10-01 11:46Z11 MO AGO

Last updated

2026-08-05 09:14Z1 MO AGO

Reserved

2025-10-01

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

• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
• CWE-664Improper Control of a Resource Through its LifetimePillar

Data version

5.2

Document digest

38404c44cee11a33d31287bfa640e0458eabf52ab02ab0c5aa67bfef914e3b24

• git.kernel.orghttps://git.kernel.org/stable/c/e1fa25a91091bbed691ba2996a6cee809e3309a2
• git.kernel.orghttps://git.kernel.org/stable/c/06e2b5ad72b60f90bfe565c201346532e271f484
• git.kernel.orghttps://git.kernel.org/stable/c/f9c8ce5d665653e3cf71a76349d41d7a7f7947e6
• git.kernel.orghttps://git.kernel.org/stable/c/573ebae162111063eedc6c838a659ba628f66a0f