What is CVE-2025-23123?

CVE-2025-23123 is a critical-severity vulnerability in Ubiquiti Inc Unifi Protect Cameras, classified under Heap-based Buffer Overflow. CVSS score: 10.0/10. Published 2025-05-19.

How severe is CVE-2025-23123?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Buffer overflow in Ubiquiti Inc Unifi Protect Cameras

CVE-2025-23123

A malicious actor with access to the management network could execute a remote code execution (RCE) by exploiting a heap buffer overflow vulnerability in the UniFi Protect Cameras (Version 4.75.43 and earlier) firmware.

Vulnerability class: Buffer Overflow

EPSS: 0.011 (60.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Ubiquiti Inc Unifi Protect Cameras — versions 4.75.62

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

support@hackerone.com

Frequently asked questions

What is CVE-2025-23123?: CVE-2025-23123 is a critical-severity vulnerability in Ubiquiti Inc Unifi Protect Cameras, classified under Heap-based Buffer Overflow. CVSS score: 10.0/10. Published 2025-05-19.
How severe is CVE-2025-23123?: Critical severity. CVSS v3 base score is 10.0 out of 10.