How severe is CVE-2023-21407?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Axis License Plate Verifier

CVE-2023-21407

A broken access control was found allowing for privileged escalation of the operator account to gain administrator privileges.

Published 2023-08-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (49.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Axis License Plate Verifier
Axis Communications Ab License Plate Verifier — versions 2.8.3 or earlier

References

www.axis.com/dam/public/0b/1c/96/cve-2023-2140712-en-US-409778.pdf (Vendor Advisory)

Frequently asked questions

What is CVE-2023-21407?: CVE-2023-21407 is a high-severity vulnerability in Axis License Plate Verifier. CVSS score: 8.8/10. Published 2023-08-03.
How severe is CVE-2023-21407?: High severity. CVSS v3 base score is 8.8 out of 10.