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TI-2023-22372 Aliases CVE-2023-41991GHSA-fj3m-2r8f-m4x9

Improper certificate validation in Apple iOS and iPadOS

Priority HIGH 82Exploited in the wildCWE-295Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Spoofing
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-295.

Summary

A certificate validation issue was addressed. This issue is fixed in macOS Ventura 13.6, iOS 16.7 and iPadOS 16.7. A malicious app may be able to bypass signature validation. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.

Why it matters now

Exploitation Active In CISA KEV since 2023-09-25CISA due date 2023-10-16
EPSS 0.1338 96th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 16.7macOS (Apple): 13.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
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

VendorProductAffected versionsFixed inStatusSource
AppleiOS and iPadOSbefore 16.716.7Patch availableCNA
ApplemacOSbefore 13.613.6Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 16.7 Fixed in 16.7 Patch available CNA
  • macOS VendorApple Affected before 13.6 Fixed in 13.6 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 16.7VulnerableApple
cpe:2.3:o:apple:ipados:17.0:*:*:*:*:*:*:*17.0VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 16.7VulnerableApple
cpe:2.3:o:apple:iphone_os:17.0:*:*:*:*:*:*:*17.0VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*13.0 to before 13.6VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 16.7 Vulnerable ·Apple
  • cpe:2.3:o:apple:ipados:17.0:*:*:*:*:*:*:* Versions 17.0 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 16.7 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:17.0:*:*:*:*:*:*:* Versions 17.0 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 13.0 to before 13.6 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 16.7
  • Fix · CNA macOS (Apple) Fixed in 13.6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apple iOS and iPadOS, macOS 13.6, 16.7

    2 records Highest priority Priority CRITICAL 1 CRITICAL, 1 HIGH

    Other records, highest priority first

    • TI-2023-22373 Improper check for unusual conditions in Apple macOSPriority CRITICAL 93
    Show all 2 records →

Timeline

  1. 2023-09-25 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2023-41991
  3. 2026-10-03 Alias added: GHSA-fj3m-2r8f-m4x9

References

Advisory 4

  • 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
See all 2382 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences