What is CVE-2013-3722?

CVE-2013-3722 is a high-severity vulnerability in Opensips, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2020-02-17.

How severe is CVE-2013-3722?

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

Vulnerability in Opensips

CVE-2013-3722

A Denial of Service (infinite loop) exists in OpenSIPS before 1.10 in lookup.c.

Published 2020-02-17 · last modified 2026-06-16.

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.

EPSS exploit prediction

EPSS: 0.011 (64.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

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

Affected products

Opensips

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

github.com/OpenSIPS/opensips/commit/54e027adfa486cfcf993828512b2e273aeb163c2 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2013-3722?: CVE-2013-3722 is a high-severity vulnerability in Opensips, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2020-02-17.
How severe is CVE-2013-3722?: High severity. CVSS v3 base score is 7.5 out of 10.