A logic issue was addressed with improved state management.
Affects the System Preferences component of macOS Catalina. The fix is Security Update 2021-002 Catalina.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Fix
- Fixed in 11.3, 2021
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
This vulnerability affects Apple's macOS operating system, specifically the Big Sur and Catalina releases. It allows a malicious application to bypass Gatekeeper, the macOS security feature that checks whether apps are trusted before they run.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
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..
Timeline
- CVE published56 days
- Added to CISA KEV
CISA has evidence of exploitation in the wild
14 days - CISA remediation deadline
Due date for US federal agencies to patch
1,434 days (about 4 years) - Record last updated366 days (about 1 year)
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- Apple macOS
From unspecified · fixed in 11.3
- Apple macOS
From unspecified · fixed in 2021
References 2
support.apple.com
Questions about CVE-2021-30657
What does this mean?
A malicious application can bypass Gatekeeper checks.Source: support.apple.com
Am I affected, and how do I check?
The advisory lists macOS Catalina, specifically the System Preferences component. The product data lists macOS as fixed in 11.3 and in 2021, with no earlier version given. To check a Mac, look up its macOS version under About This Mac.Source: support.apple.com
What should I do about it?
Install Security Update 2021-002 Catalina, which the advisory names as the fix. The product data also lists macOS 11.3 as a fixed version.Source: support.apple.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2021-11-03, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data