SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-21232

re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.

MEDIUM 5.5EPSS 1.47%

Does this matter?

Lower severity and a low EPSS score (1.47%). Track it; it rarely justifies an emergency change on its own.

Description

re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.

CVSS 3.1
5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
1.47% probability · 74th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-674
Affected
re2c/re2c
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 1.47%27 October 202627 October 2026

EPSS 1.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.