TI-2021-01574 Aliases CVE-2021-1872 GHSA-9j28-crwr-wvfx

Apple iOS and iPadOS: Muting a CallKit call while ringing may not result in mute being…

LOW 22Published 2021-09-08 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A logic issue was addressed with improved state management. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, macOS Big Sur 11.3. Muting a CallKit call while ringing may not result in mute being enabled.

Why it matters now

EPSS 0.01039 64th percentileScored 2026-11-07

Fix Fixed iOS and iPadOS (Apple): 14.5watchOS (Apple): 7.4+1 more product

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Apple	iOS and iPadOS	before 14.5	14.5	Patch available	CNA
Apple	watchOS	before 7.4	7.4	Patch available	CNA
Apple	macOS	before 11.3	11.3	Patch available	CNA

iOS and iPadOS VendorApple Affected before 14.5 Fixed in 14.5 Patch available CNA
watchOS VendorApple Affected before 7.4 Fixed in 7.4 Patch available CNA
macOS VendorApple Affected before 11.3 Fixed in 11.3 Patch available CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:o:apple:ipados::::::::	before 14.5	Vulnerable	Apple
cpe:2.3:o:apple:iphone_os::::::::	before 14.5	Vulnerable	Apple
cpe:2.3:o:apple:macos::::::::	11.0 to before 11.3	Vulnerable	Apple

cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 14.5 Vulnerable ·Apple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 14.5 Vulnerable ·Apple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 11.0 to before 11.3 Vulnerable ·Apple

Remediation

Fix · CNA iOS and iPadOS (Apple) Fixed in 14.5
Fix · CNA watchOS (Apple) Fixed in 7.4
Fix · CNA macOS (Apple) Fixed in 11.3

Fixed in the same release

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

Release · 2021-09-08
Apple macOS 11.3
62 records Highest priority Priority CRITICAL 3 CRITICAL, 1 HIGH, 9 MEDIUM, 49 LOW
Other records, highest priority first
- TI-2021-11050 Out-of-bounds write in Apple macOSPriority CRITICAL 97
- TI-2021-11048 Integer overflow in Apple macOSPriority CRITICAL 97
- TI-2021-11046 Use after free in Apple iOS and iPadOSPriority CRITICAL 97
Show all 62 records →
Release · 2021-09-08
Apple iOS and iPadOS 14.5
60 records Highest priority Priority CRITICAL 1 CRITICAL, 7 MEDIUM, 52 LOW
Other records, highest priority first
- TI-2021-11046 Use after free in Apple iOS and iPadOSPriority CRITICAL 97
- TI-2021-01483 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 47
- TI-2021-01568 Use after free in Apple iOS and iPadOSPriority MEDIUM 46
Show all 60 records →

Show 1 more group

Release · 2021-09-08
Apple watchOS 7.4
43 records Highest priority Priority CRITICAL 1 CRITICAL, 5 MEDIUM, 37 LOW
Other records, highest priority first
- TI-2021-11046 Use after free in Apple iOS and iPadOSPriority CRITICAL 97
- TI-2021-01483 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 47
- TI-2021-01568 Use after free in Apple iOS and iPadOSPriority MEDIUM 46
Show all 43 records →

Timeline

2026-10-02 Threatist record created from CVE-2021-1872
2026-10-03 Alias added: GHSA-9j28-crwr-wvfx

References

Advisory 3

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