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TI-2021-11232 Aliases CVE-2021-30860

Integer overflow in Apple macOS

Priority CRITICAL 93Exploited in the wildCWE-190Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.

Summary

An integer overflow was addressed with improved input validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. Processing a maliciously crafted PDF may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Why it matters now

Exploitation Active In CISA KEV since 2021-11-03CISA due date 2021-11-17
EPSS 0.75994 99th percentileScored 2026-11-07
Fix Fixed macOS (Apple): 11.6, 2021-005watchOS (Apple): 7.6+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApplemacOSbefore 11.611.6Patch availableCNA
ApplemacOSbefore 2021-0052021-005Patch availableCNA
ApplewatchOSbefore 7.67.6Patch availableCNA
AppleiOSbefore 14.814.8Patch availableCNA
  • macOS VendorApple Affected before 11.6 Fixed in 11.6 Patch available CNA
  • macOS VendorApple Affected before 2021-005 Fixed in 2021-005 Patch available CNA
  • watchOS VendorApple Affected before 7.6 Fixed in 7.6 Patch available CNA
  • iOS VendorApple Affected before 14.8 Fixed in 14.8 Patch available CNA

CPE configurations NVD · 14

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 14.8VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 12.5.5; 13.0 to before 14.8VulnerableApple
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*10.15 to before 10.15.7VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*10.15.7VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:*10.15.7 security_update_2020VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*10.15.7 security_update_2020-001VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*10.15.7 security_update_2021-001VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*10.15.7 security_update_2021-002VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*10.15.7 security_update_2021-003VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*10.15.7 security_update_2021-004VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 14.8 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 12.5.5; 13.0 to before 14.8 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions 10.15 to before 10.15.7 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:* Versions 10.15.7 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:* Versions 10.15.7 security_update_2020 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:* Versions 10.15.7 security_update_2020-001 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:* Versions 10.15.7 security_update_2021-001 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:* Versions 10.15.7 security_update_2021-002 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:* Versions 10.15.7 security_update_2021-003 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:* Versions 10.15.7 security_update_2021-004 Vulnerable ·Apple
Show 4 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*before 11.6VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 7.6.2VulnerableApple
cpe:2.3:a:xpdfreader:xpdf:*:*:*:*:*:*:*:*before 4.04VulnerableXpdfreader
cpe:2.3:a:freedesktop:poppler:*:*:*:*:*:*:*:*before 22.09.0VulnerableFreedesktop
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 11.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 7.6.2 Vulnerable ·Apple
  • cpe:2.3:a:xpdfreader:xpdf:*:*:*:*:*:*:*:* Versions before 4.04 Vulnerable ·Xpdfreader
  • cpe:2.3:a:freedesktop:poppler:*:*:*:*:*:*:*:* Versions before 22.09.0 Vulnerable ·Freedesktop

Remediation

  • Fix · CNA macOS (Apple) Fixed in 11.6
  • Fix · CNA macOS (Apple) Fixed in 2021-005
  • Fix · CNA watchOS (Apple) Fixed in 7.6
  • Fix · CNA iOS (Apple) Fixed in 14.8

Fixed in the same release

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

  • Release ·

    Apple macOS 11.6

    72 records Highest priority Priority CRITICAL 4 CRITICAL, 5 MEDIUM, 63 LOW

    Other records, highest priority first

    • TI-2021-11230 Use after free in Apple macOSPriority CRITICAL 97
    • TI-2021-11253 Out-of-bounds write in Apple iOS and iPadOSPriority CRITICAL 93
    • TI-2021-11373 Deserialization of untrusted data in Apple macOSPriority CRITICAL 90
    Show all 72 records →
  • Release ·

    Apple watchOS 7.6

    3 records Highest priority Priority CRITICAL 2 CRITICAL, 1 LOW

    Other records, highest priority first

    • TI-2021-11373 Deserialization of untrusted data in Apple macOSPriority CRITICAL 90
    • TI-2021-11369 Incorrect default permissions in Apple macOSPriority LOW 26
    Show all 3 records →
Show 1 more group
  • Release ·

    Apple iOS 14.8

    2 records Highest priority Priority CRITICAL 2 CRITICAL

    Other records, highest priority first

    Show all 2 records →

Timeline

  1. 2021-11-03 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2021-30860

References

Advisory 14

Other 1

  • 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