Apple iOS, macOS and visionOS Out-of-Bounds Write Flaw Causes App Crash
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
An out-of-bounds write in Apple iOS and iPadOS, macOS, and visionOS (CWE-787) lets a maliciously crafted image cause unexpected app termination. The CVSS 3.1 base score is 6.5 (MEDIUM), with the attack requiring user interaction and affecting availability only. CISA has not added it to KEV, and no exploitation is reported.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, visionOS 27.2. Processing a maliciously crafted image may lead to unexpected app termination.
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 | iOS and iPadOS | before 26.7.2; before 27.2 | 26.7.2, 27.2 | Patch available | CNA |
| Apple | macOS | before 15.8.2; before 26.7.2; before 27.2 | 15.8.2, 26.7.2, 27.2 | Patch available | CNA |
| Apple | visionOS | before 27.2 | 27.2 | Patch available | CNA |
- iOS and iPadOS VendorApple Affected before 26.7.2; before 27.2 Fixed in 26.7.2, 27.2 Patch available CNA
- macOS VendorApple Affected before 15.8.2; before 26.7.2; before 27.2 Fixed in 15.8.2, 26.7.2, 27.2 Patch available CNA
- visionOS VendorApple Affected before 27.2 Fixed in 27.2 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* | before 26.7.2; 27.0 to before 27.2 | Vulnerable | Apple |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | before 26.7.2; 27.0 to before 27.2 | Vulnerable | Apple |
| cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* | 15.0 to before 15.8.2; 26.0 to before 26.7.2; 27.0 to before 27.2 | Vulnerable | Apple |
| cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* | before 27.2 | Vulnerable | Apple |
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 26.7.2; 27.0 to before 27.2 Vulnerable ·Apple
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 26.7.2; 27.0 to before 27.2 Vulnerable ·Apple
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 15.0 to before 15.8.2; 26.0 to before 26.7.2; 27.0 to before 27.2 Vulnerable ·Apple
- cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* Versions before 27.2 Vulnerable ·Apple
Remediation
Update to iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, macOS Golden Gate 27.2, or visionOS 27.2, depending on the device.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA iOS and iPadOS (Apple) Fixed in 26.7.2, 27.2
- Fix · CNA macOS (Apple) Fixed in 15.8.2, 26.7.2, 27.2
- Fix · CNA visionOS (Apple) Fixed in 27.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 15.8.2, 26.7.2, 27.2
166 records Highest priority Priority MEDIUM 29 MEDIUM, 137 LOW
Other records, highest priority first
- TI-2026-80879 Apple iOS, macOS and visionOS flaw allows WebContent sandbox escapePriority MEDIUM 51
- TI-2026-80811 Out-of-bounds write in Apple macOS allows system terminationPriority MEDIUM 50
- TI-2026-80633 Buffer overflow in Apple macOS allows remote app crashesPriority MEDIUM 50
- Release ·
Apple visionOS 27.2
124 records Highest priority Priority MEDIUM 34 MEDIUM, 90 LOW
Other records, highest priority first
- TI-2026-80879 Apple iOS, macOS and visionOS flaw allows WebContent sandbox escapePriority MEDIUM 51
- TI-2026-80671 Sandbox escape in Apple Safari and other Apple platformsPriority MEDIUM 50
- TI-2026-80785 Use-after-free in Apple iOS, iPadOS, macOS and other systemsPriority MEDIUM 48
Show 1 more group
- Release ·
Apple iOS and iPadOS 26.7.2, 27.2
118 records Highest priority Priority MEDIUM 28 MEDIUM, 90 LOW
Other records, highest priority first
- TI-2026-80879 Apple iOS, macOS and visionOS flaw allows WebContent sandbox escapePriority MEDIUM 51
- TI-2026-80785 Use-after-free in Apple iOS, iPadOS, macOS and other systemsPriority MEDIUM 48
- TI-2026-80867 Resource exhaustion in Apple iOS, iPadOS, macOS and visionOSPriority MEDIUM 41
Timeline
- 2026-10-26 Threatist record created from CVE-2026-86971
- 2026-10-27 CVSS score added · CISA ADP
- 2026-10-27 Weakness changed · CISA ADP
- 2026-10-27 CISA SSVC decision points changed
- 2026-10-27 Alias added: GHSA-9wv9-38gm-3q7c
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-2026-86971 · CVE Program
- CVE-2026-86971 · NVD
- FIRST EPSS
- GHSA-9wv9-38gm-3q7c · 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