CVE-2021-4192
HighPublic PoC
Published: 31 December 2021
Published
31 December 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.0055
68.5th percentile
Risk Priority
16
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-4192 is a high-severity Use After Free (CWE-416) vulnerability in Apple Mac Os X. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 31.5% 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-2021-34052
Vulnerability details
vim is vulnerable to Use After Free
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
vim
vim
≤ 8.2.3949
fedoraproject
fedora
34
debian
debian linux
10.0, 9.0
apple
mac os x
10.15.7
apple
macos
10.15.7 · ≤ 12.3 · 11.0 — 11.6.6
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.