Cyber Resilience

CVE-2023-21720

Medium

Published: 14 February 2023

Published
14 February 2023
Modified
01 January 2025
KEV Added
—
Patch
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CVSS Score v3.1 5.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0035 57.6th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-21720 is a medium-severity Buffer Over-read (CWE-126) vulnerability in Microsoft Edge Chromium. Its CVSS base score is 5.3 (Medium).

Operationally, ranked in the top 42.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Microsoft Edge (Chromium-based) Tampering Vulnerability

CWE(s)
CWE-126NVD-CWE-noinfo

Related Threats

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

Affected Assets

microsoft
edge chromium
≤ 109.0.15.18.78

Mitigating Controls

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

References