Resource exhaustion in Libexpat Project

CVE-2023-52425

libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are required in the case of a large token for which multiple buffer fills are needed.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.018 (76.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-52425?
CVE-2023-52425 is a high-severity vulnerability in Libexpat Project, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2024-02-04.
How severe is CVE-2023-52425?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-52425 known to be exploited?
17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.