CVE-2021-30657 kev in the critical feed json
A logic issue was addressed with improved state management.
published 2021-09-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-17574
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Exploited
- added 2021-11-03
- epss
- 68.5%
- EPSS 68.5% chance of exploitation in 30 days, percentile 99.3%
- public exploits
- 1
- Metasploit
Summary
A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina. A malicious application may bypass Gatekeeper checks. Apple is aware of a report that this issue may have been actively exploited..
Patch / fix
cisa required action Apply updates per vendor instructions.
- Apple macOS 11.3, 2021
Timeline
- First public exploit (Metasploit exploit/osx/browser/osx_gatekeeper_bypass)
- Published
- Added to CISA KEV
- CISA patch deadline
- CISA SSVC: exploitation active
Known exploited
- Added
- 5 y ago
- Patch by
- 2021-11-17 (4 y ago)
- Ransomware
- Not known
- Required action
- Apply updates per vendor instructions.
- Vendor, product
- Apple, macOS
- CISA name
- Apple macOS Unspecified Vulnerability
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- partial
- Assessed
- 21 mo ago
Exploit prediction
68.53% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/osx/browser/osx_gatekeeper_bypass macOS Gatekeeper check bypass metasploit exploit, manual rank, 2021-03-25
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected products
- Apple macOS
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
support.apple.com
/en-us/HT212325
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT212326
release-notes, vendor-advisory
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30657
government-resource, third-party-advisory, us-government-resource
Sources
- CVE List CVE-2021-30657
- NVD CVE-2021-30657
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