Cyber Resilience

CVE-2021-23663

MediumPublic PoC

Published: 10 December 2021

Published
10 December 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:N/S:U/C:N/I:L/A:L
EPSS Score 0.0048 65.4th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-23663 is a medium-severity Prototype Pollution (CWE-1321) vulnerability in Sey Project Sey. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 34.6% 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

Vulnerability details

All versions of package sey are vulnerable to Prototype Pollution via the deepmerge() function.

CWE(s)
CWE-1321

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

sey project
sey
all versions

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References