Improper signature verification in Apple macOS
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-347.
Summary
An issue in code signature validation was addressed with improved checks. This issue is fixed in macOS Big Sur 11.7, macOS Ventura 13, iOS 16, iOS 15.7 and iPadOS 15.7, macOS Monterey 12.6. An app may be able to bypass code signing checks.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apple | macOS | before 13 | 13 | Patch available | CNA |
| Apple | macOS | before 16 | 16 | Patch available | CNA |
| Apple | macOS | before 11.7 | 11.7 | Patch available | CNA |
| Apple | macOS | before 15.7 | 15.7 | Patch available | CNA |
| Apple | macOS | before 12.6 | 12.6 | Patch available | CNA |
- macOS VendorApple Affected before 13 Fixed in 13 Patch available CNA
- macOS VendorApple Affected before 16 Fixed in 16 Patch available CNA
- macOS VendorApple Affected before 11.7 Fixed in 11.7 Patch available CNA
- macOS VendorApple Affected before 15.7 Fixed in 15.7 Patch available CNA
- macOS VendorApple Affected before 12.6 Fixed in 12.6 Patch available CNA
Remediation
- Fix · CNA macOS (Apple) Fixed in 13
- Fix · CNA macOS (Apple) Fixed in 16
- Fix · CNA macOS (Apple) Fixed in 11.7
- Fix · CNA macOS (Apple) Fixed in 15.7
- Fix · CNA macOS (Apple) Fixed in 12.6
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 13
63 records Highest priority Priority MEDIUM 9 MEDIUM, 54 LOW
Other records, highest priority first
- TI-2022-20822 Out-of-bounds write in Apple macOSPriority MEDIUM 54
- TI-2022-14464 Buffer overflow in Apple macOSPriority MEDIUM 53
- TI-2022-20826 Improper certificate validation in Apple macOSPriority MEDIUM 51
- Release ·
Apple macOS 16
19 records Highest priority Priority MEDIUM 2 MEDIUM, 17 LOW
Other records, highest priority first
- TI-2022-20811 Out-of-bounds write in Apple macOSPriority MEDIUM 43
- TI-2022-14415 Out-of-bounds write in Apple macOSPriority MEDIUM 43
- TI-2022-14419 Apple macOS: A sandboxed process may be able to circumvent sandbox restrictionsPriority LOW 39
Show 3 more groups
- Release ·
Apple macOS 11.7
16 records Highest priority Priority MEDIUM 3 MEDIUM, 13 LOW
Other records, highest priority first
- TI-2022-14464 Buffer overflow in Apple macOSPriority MEDIUM 53
- TI-2022-14458 Memory corruption in Apple macOSPriority MEDIUM 44
- TI-2022-14415 Out-of-bounds write in Apple macOSPriority MEDIUM 43
- Release ·
Apple macOS 15.7
11 records Highest priority Priority MEDIUM 2 MEDIUM, 9 LOW
Other records, highest priority first
- TI-2022-14464 Buffer overflow in Apple macOSPriority MEDIUM 53
- TI-2022-14415 Out-of-bounds write in Apple macOSPriority MEDIUM 43
- TI-2022-14419 Apple macOS: A sandboxed process may be able to circumvent sandbox restrictionsPriority LOW 39
- Release ·
Apple macOS 12.6
10 records Highest priority Priority MEDIUM 2 MEDIUM, 8 LOW
Other records, highest priority first
- TI-2022-14464 Buffer overflow in Apple macOSPriority MEDIUM 53
- TI-2022-14458 Memory corruption in Apple macOSPriority MEDIUM 44
- TI-2022-20816 Improper input validation in Apple macOSPriority LOW 36
Timeline
- 2026-10-02 Threatist record created from CVE-2022-42793
- 2026-10-03 Alias added: GHSA-fvf3-rpfr-xqw3
References
More Apple Ipados vulnerabilities
- TI-2025-28008 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2025-22441 Apple iOS and iPadOS: An attacker with arbitrary read and write capability may be able to… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-22440 Memory corruption in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-17951 Out-of-bounds write in Apple Safari KEVCVSS 3.1CRITICAL 10.0
- TI-2025-17847 Use after free in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2022-06854 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-42793 · CVE Program
- CVE-2022-42793 · NVD
- FIRST EPSS
- GHSA-fvf3-rpfr-xqw3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences