CVE-2022-23901

Name: CVE-2022-23901
Creator: NVD / NIST
Published: 2022-03-29T12:15:07.74+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.56%

Last modified Jun 17, 2026

CVE-2022-23901 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A stack overflow re2c 2.2 exists due to infinite recursion issues in src/dfa/dead_rules.cc.. EPSS estimates a 1.56% chance of exploitation in the next 30 days.

Description

A stack overflow re2c 2.2 exists due to infinite recursion issues in src/dfa/dead_rules.cc.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.56%

72.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Re2c	Re2c	2.2

References

https://github.com/skvadrik/re2c/issues/394Exploit, Patch, Third Party Advisory
https://github.com/skvadrik/re2c/issues/394Exploit, Patch, Third Party Advisory

Timeline

Published: Mar 29, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-23901?

A stack overflow re2c 2.2 exists due to infinite recursion issues in src/dfa/dead_rules.cc.

How severe is CVE-2022-23901?

CVE-2022-23901 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.56% probability of exploitation in the next 30 days.

How do I fix CVE-2022-23901?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-23901?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST