CVE-2021-3801
MediumPublic PoC
Published: 15 September 2021
Published
15 September 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score
0.0028
51.7th percentile
Risk Priority
13
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-3801 is a medium-severity Inefficient Regular Expression Complexity (CWE-1333) vulnerability in Prismjs Prism. Its CVSS base score is 6.5 (Medium).
Operationally, ranked in the top 48.3% 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-2021-2075
Vulnerability details
prism 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
prismjs
prism
≤ 1.25.0
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.