CVE-2023-53403

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 4.3% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/A:H

NVD analysis status

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2025-09-18 13:58Z11 MO AGO

Last updated

2026-05-11 19:44Z3 MO AGO

Reserved

2025-09-17

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

• CWE-401Missing Release of Memory after Effective LifetimeVariant

Data version

5.2

Document digest

54a7040b081a56e4df1cef39de08d1cd444fb2624ccc32606456fd7cb068d8c2

• git.kernel.orghttps://git.kernel.org/stable/c/dc39fbd865a9819db4b622f610ba17b2ebc294f4
• git.kernel.orghttps://git.kernel.org/stable/c/15cffd01ed80e3506e29ba9f441e2358413b7317
• git.kernel.orghttps://git.kernel.org/stable/c/b588b42d077ce93c98704b41003bcec6a564b738
• git.kernel.orghttps://git.kernel.org/stable/c/5b268d8abaec6cbd4bd70d062e769098d96670aa