Auth bypass in Apple Macos
CVE-2021-30657
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…
Vulnerability class: Broken Access Control
EPSS: 0.685 (99.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
Affected products
- Apple Macos — versions unspecified
- Apple Mac_os_x — versions 10.15.6, 10.15.7
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- product-security@apple.com (x_refsource_MISC, Release Notes, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Release Notes, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Third Party Advisory, US Government Resource)
Frequently asked questions
- What is CVE-2021-30657?
- CVE-2021-30657 is a medium-severity vulnerability in Apple Macos, classified under Missing Authorization. CVSS score: 5.5/10. Published 2021-09-08.
- How severe is CVE-2021-30657?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2021-30657 known to be exploited?
- Yes. CVE-2021-30657 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 12 public proof-of-concept repositories are indexed.