CVE-2021-30606
High
Published: 03 September 2021
Published
03 September 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.0159
82.1th percentile
Risk Priority
19
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-30606 is a high-severity Use After Free (CWE-416) vulnerability in Microsoft Edge. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 17.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-17526
Vulnerability details
Chromium: CVE-2021-30606 Use after free in Blink
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
microsoft
edge
≤ 93.0.961.38
microsoft
edge chromium
≤ 93.0.4577.63
fedoraproject
fedora
35
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
addresses: CWE-416
Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.