CVE-2021-30853
CVE-2021-30853 is a medium-severity vulnerability in Apple Macos with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 7% (93rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Apple Macos
- Published:
- Last modified:
Description
This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.6. A malicious application may bypass Gatekeeper checks.
Frequently asked questions
- What is CVE-2021-30853?
- This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.6. A malicious application may bypass Gatekeeper checks.
- How severe is CVE-2021-30853?
- CVE-2021-30853 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2021-30853 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-30853?
- CVE-2021-30853 affects Apple Macos. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-30853?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-30853 published?
- CVE-2021-30853 was published on 2021-08-24 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
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