What is CVE-2025-45851?

CVE-2025-45851 is a high-severity vulnerability in N/a. CVSS score: 7.5/10. Published 2025-06-27.

How severe is CVE-2025-45851?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2025-45851 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in N/a

CVE-2025-45851

An issue in Hikvision DS-2CD1321-I V5.7.21 build 230819 allows attackers to cause a Denial of Service (DoS) via sending a crafted POST request to the endpoint /ISAPI/Security/challenge. The vendor has stated that upgrading to V5.7.23_SP2 fixes the issue.

EPSS: 0.005 (42.1th 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

N/a — versions n/a

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

cve@mitre.org
cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2025-45851?: CVE-2025-45851 is a high-severity vulnerability in N/a. CVSS score: 7.5/10. Published 2025-06-27.
How severe is CVE-2025-45851?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2025-45851 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.