CVE-2021-27292
HighPublic PoC
Published: 17 March 2021
Published
17 March 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
0.0144
81.1th percentile
Risk Priority
16
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-27292 is a high-severity an unspecified weakness vulnerability in Ua-Parser-Js Project Ua-Parser-Js. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 18.9% 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-2021-0991
Vulnerability details
ua-parser-js >= 0.7.14, fixed in 0.7.24, uses a regular expression which is vulnerable to denial of service. If an attacker sends a malicious User-Agent header, ua-parser-js will get stuck processing it for an extended period of time.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
ua-parser-js project
ua-parser-js
0.7.14 — 0.7.24
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.