What is CVE-2023-29973?

CVE-2023-29973 is a medium-severity vulnerability in Pfsense, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.9/10. Published 2023-10-25.

How severe is CVE-2023-29973?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Resource exhaustion in Pfsense

CVE-2023-29973

Pfsense CE version 2.6.0 is vulnerable to No rate limit which can lead to an attacker creating multiple malicious users in firewall.

Published 2023-10-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.016 (75.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Pfsense — versions 2.6.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

www.esecforte.com/cve-2023-29973-no-rate-limit/ (Exploit, Third Party Advisory, Mitigation)

Frequently asked questions

What is CVE-2023-29973?: CVE-2023-29973 is a medium-severity vulnerability in Pfsense, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.9/10. Published 2023-10-25.
How severe is CVE-2023-29973?: Medium severity. CVSS v3 base score is 4.9 out of 10.