TI-2026-31866 Aliases CVE-2026-43776 GHSA-77wc-7xcr-f383

Buffer overflow in Apple iOS and iPadOS

LOW 35CWE-120Published 2026-07-27 · Updated 2026-08-17

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-120 and the CVSS impact.

Summary

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00194 9th percentileScored 2026-11-07

Fix Fixed iOS and iPadOS (Apple): 18.7.10, 26.6macOS (Apple): 15.7.8, 26.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
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

Vendor	Product	Affected versions	Fixed in	Status	Source
Apple	iOS and iPadOS	before 18.7.10; before 26.6	18.7.10, 26.6	Patch available	CNA
Apple	macOS	before 15.7.8; before 26.6	15.7.8, 26.6	Patch available	CNA

iOS and iPadOS VendorApple Affected before 18.7.10; before 26.6 Fixed in 18.7.10, 26.6 Patch available CNA
macOS VendorApple Affected before 15.7.8; before 26.6 Fixed in 15.7.8, 26.6 Patch available CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:o:apple:ipados::::::::	before 26.6	Vulnerable	Apple
cpe:2.3:o:apple:iphone_os::::::::	before 26.6	Vulnerable	Apple
cpe:2.3:o:apple:macos::::::::	15.0 to before 15.7.8; 26.0 to before 26.6	Vulnerable	Apple

cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 26.6 Vulnerable ·Apple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 26.6 Vulnerable ·Apple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 15.0 to before 15.7.8; 26.0 to before 26.6 Vulnerable ·Apple

Remediation

Fix · CNA iOS and iPadOS (Apple) Fixed in 18.7.10, 26.6
Fix · CNA macOS (Apple) Fixed in 15.7.8, 26.6

Fixed in the same release

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

Release · 2026-07-27
Apple iOS and iPadOS 18.7.10, 26.6
57 records Highest priority Priority MEDIUM 19 MEDIUM, 38 LOW
Other records, highest priority first
- TI-2026-46261 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 51
- TI-2026-46306 Integer overflow in Apple iOS and iPadOSPriority MEDIUM 50
- TI-2026-46303 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 50
Show all 57 records →
Release · 2026-07-27
Apple macOS 15.7.8, 26.6
12 records Highest priority Priority MEDIUM 5 MEDIUM, 7 LOW
Other records, highest priority first
- TI-2026-46303 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 50
- TI-2026-46266 Path traversal in Apple macOSPriority MEDIUM 50
- TI-2026-31901 Use after free in Apple iOS and iPadOSPriority MEDIUM 50
Show all 12 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-43776
2026-10-03 Alias added: GHSA-77wc-7xcr-f383

References

Advisory 3

Other 1

https://support.apple.com/en-us/148287

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