CVE-2021-3807
HighPublic PoC
Published: 17 September 2021
Published
17 September 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.0022
44.1th percentile
Risk Priority
15
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-3807 is a high-severity Inefficient Regular Expression Complexity (CWE-1333) vulnerability in Ansi-Regex Project Ansi-Regex. Its CVSS base score is 7.5 (High).
Operationally, ranked at the 44.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-2021
Vulnerability details
ansi-regex is vulnerable to Inefficient Regular Expression Complexity
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
ansi-regex project
ansi-regex
3.0.0, 5.0.0, 6.0.0 · 4.0.0 — 4.1.1
oracle
communications cloud native core policy
1.15.0
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.