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

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.011 (65.0th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-23123: held from 0.011 to 0.011.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Weakness classification (CWE)

References

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.