CVE-2021-30968
A validation issue related to hard link behavior was addressed with improved sandbox restrictions. This issue is fixed in macOS Big Sur…
- Published
- Updated
- Reserved
- Assigned by
- apple
Description
A validation issue related to hard link behavior was addressed with improved sandbox restrictions. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. A malicious application may be able to bypass certain Privacy preferences.
Timeline
ID reserved
By apple
- 4 months later
· 4 months later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.1% · top 35% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
- A malicious application may be able to bypass certain Privacy preferences
- CWE-59 (opens in a new tab)All about CWE-59 and its CVEs
Affected products
References (6)
- https://support.apple.com/en-us/HT212975 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/en-us/HT212976 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/en-us/HT212978 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/en-us/HT212979 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/en-us/HT212981 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/en-us/HT212980 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-30968)Record last updated .