CVE-2021-23364
MediumPublic PoC
Published: 28 April 2021
Published
28 April 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score
0.0060
69.9th percentile
Risk Priority
11
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-23364 is a medium-severity Inefficient Regular Expression Complexity (CWE-1333) vulnerability in Browserslist Project Browserslist. Its CVSS base score is 5.3 (Medium).
Operationally, ranked in the top 30.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-1216
Vulnerability details
The package browserslist from 4.0.0 and before 4.16.5 are vulnerable to Regular Expression Denial of Service (ReDoS) during parsing of queries.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
browserslist project
browserslist
4.0.0 — 4.16.5
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.