CVE-2021-30755
Medium
Published: 08 September 2021
Published
08 September 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score
0.0041
61.6th percentile
Risk Priority
13
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-30755 is a medium-severity Out-of-bounds Read (CWE-125) vulnerability in Apple Macos. Its CVSS base score is 6.5 (Medium).
Operationally, ranked in the top 38.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-17672
Vulnerability details
Processing a maliciously crafted font may result in the disclosure of process memory. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5. An out-of-bounds read was addressed with improved input validation.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
apple
macos
11.0 — 11.4
apple
tvos
≤ 14.6
apple
watchos
≤ 7.5
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.