CVE-2021-30657
Apple macOS: Unspecified
As of , CVE-2021-30657 in Apple macOS is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.
- Exploited
- Yes: CISA listed it on 3 November 2021
- US federal deadline
- 17 November 202114 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.69Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- Not availableCISA listed it before 4 February 2022, where the EPSS files we read begin.
- Public exploit
- 1 Metasploit module
- Fix
- No vendor link in CISA's entry
What CISA says to do
Apply updates per vendor instructions.
CISA's required action
What the flaw is
Apple macOS contains an unspecified logic issue in System Preferences that may allow a malicious application to bypass Gatekeeper checks.
CISA's 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..
The CVE record's description, from apple
- CVE published
- 8 September 2021
- Assigned by
- apple
- CVSS
- 5.5 Medium (CVSS 3.1, from CISA-ADP)
- CWE-862
- Missing Authorization
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- partial
Timeline
- The CVE record was published.
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
Public exploits
Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.
- Metasploit: macOS Gatekeeper check bypassexploit module, rank manual
macOS: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2026-65400Improper Authentication | Apple macOS | Patch nowForensic triage required by CISA | 0.02 | ||
| CVE-2022-22675Out-of-Bounds Write | Apple macOS | Patch soon | 0.12 | ||
| CVE-2021-30713Unspecified | Apple macOS | Patch soon | 0.07 | ||
| CVE-2022-22674Out-of-Bounds Read | Apple macOS | Patch soon | 0.01 | ||
| CVE-2019-8526Use-After-Free | Apple macOS | Patch soon | 0.01 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org