Apple iOS and iPadOS: Processing web content may disclose sensitive information
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 9 fixed, 3 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.6, tvOS 17, iOS 16.7 and iPadOS 16.7, macOS Monterey 12.7, watchOS 10, iOS 17 and iPadOS 17, macOS Sonoma 14. Processing web content may disclose sensitive information.
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 17 | 17 | Patch available | CNA |
| Apple | macOS | before 12.7 | 12.7 | Patch available | CNA |
| Apple | iOS and iPadOS | before 16.7 | 16.7 | Patch available | CNA |
| Apple | macOS | before 13.6 | 13.6 | Patch available | CNA |
| Apple | tvOS | before 17 | 17 | Patch available | CNA |
| Apple | macOS | before 14 | 14 | Patch available | CNA |
| Apple | watchOS | before 10 | 10 | Patch available | CNA |
- iOS and iPadOS VendorApple Affected before 17 Fixed in 17 Patch available CNA
- macOS VendorApple Affected before 12.7 Fixed in 12.7 Patch available CNA
- 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
- tvOS VendorApple Affected before 17 Fixed in 17 Patch available CNA
- macOS VendorApple Affected before 14 Fixed in 14 Patch available CNA
- watchOS VendorApple Affected before 10 Fixed in 10 Patch available CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* | before 16.7 | Vulnerable | Apple |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | before 16.7 | Vulnerable | Apple |
| cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* | 12.0.0 to before 12.7; 13.0 to before 13.6 | Vulnerable | Apple |
| cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | before 17.0 | Vulnerable | Apple |
| cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | before 10.0 | Vulnerable | Apple |
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 16.7 Vulnerable ·Apple
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 16.7 Vulnerable ·Apple
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 12.0.0 to before 12.7; 13.0 to before 13.6 Vulnerable ·Apple
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 17.0 Vulnerable ·Apple
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 10.0 Vulnerable ·Apple
Remediation
- Fix · CNA iOS and iPadOS (Apple) Fixed in 17
- Fix · CNA macOS (Apple) Fixed in 12.7
- Fix · CNA iOS and iPadOS (Apple) Fixed in 16.7
- Fix · CNA macOS (Apple) Fixed in 13.6
- Fix · CNA tvOS (Apple) Fixed in 17
- Fix · CNA macOS (Apple) Fixed in 14
- Fix · CNA watchOS (Apple) Fixed in 10
Red Hat 14 advisories
- RHSA-2026:29811 Released 2026-06-25 · Red Hat rating Moderatelibxslt security update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) libxslt-1.1.34-12.el9_2, libxslt-devel-1.1.34-12.el9_2
- RHSA-2026:25096 Released 2026-06-10 · Red Hat rating ImportantRed Hat AI Inference Server Model Optimization Tools 3.2.2 (cuda)
- Red Hat AI Inference Server 3.2 registry.redhat.io/rhaiis/model-opt-cuda-rhel9
- RHSA-2026:16174 Released 2026-05-12 · Red Hat rating ImportantRed Hat AI Inference Server 3.3.3 (Spyre)
- Red Hat AI Inference Server 3.3 registry.redhat.io/rhaiis/vllm-spyre-rhel9
Show 11 more Red Hat advisories
- RHSA-2026:16009 Released 2026-05-11 · Red Hat rating ImportantRed Hat AI Inference Server 3.3.3 (ROCm)
- Red Hat AI Inference Server 3.3 registry.redhat.io/rhaiis/vllm-rocm-rhel9
- RHSA-2026:16008 Released 2026-05-11 · Red Hat rating ImportantRed Hat AI Inference Server Model Optimization Tools 3.3.3 (CUDA)
- Red Hat AI Inference Server 3.3 registry.redhat.io/rhaiis/model-opt-cuda-rhel9
- RHSA-2026:10065 Released 2026-04-23 · Red Hat rating ImportantRed Hat Update Infrastructure 5.1 security update
- Red Hat Update Infrastructure 5 registry.redhat.io/rhui5/cds-rhel9, registry.redhat.io/rhui5/haproxy-rhel9, registry.redhat.io/rhui5/installer-rhel9 +1
- RHSA-2026:8748 Released 2026-04-17 · Red Hat rating ImportantRed Hat AI Inference Server Model Optimization Tools 3.3.1 (CUDA)
- Red Hat AI Inference Server 3.3 registry.redhat.io/rhaiis/model-opt-cuda-rhel9
- RHSA-2026:8746 Released 2026-04-17 · Red Hat rating ImportantRed Hat AI Inference Server 3.3.1 (CUDA)
- Red Hat AI Inference Server 3.3 registry.redhat.io/rhaiis/vllm-cuda-rhel9
- RHSA-2026:8747 Released 2026-04-17 · Red Hat rating ImportantRed Hat AI Inference Server 3.3.1 (ROCm)
- Red Hat AI Inference Server 3.3 registry.redhat.io/rhaiis/vllm-rocm-rhel9
- RHSA-2026:7335 Released 2026-04-09 · Red Hat rating ImportantRed Hat AI Inference Server 3.2.2 (CUDA)
- Red Hat AI Inference Server 3.2 registry.redhat.io/rhaiis/vllm-cuda-rhel9
- RHSA-2026:6499 Released 2026-04-02 · Red Hat rating Moderatelibxslt security update
- Red Hat Enterprise Linux AppStream EUS (v.9.6) libxslt-1.1.34-13.el9_6.1, libxslt-devel-1.1.34-13.el9_6.1
- RHSA-2026:6266 Released 2026-03-31 · Red Hat rating Moderatelibxslt security update
- Red Hat Enterprise Linux AppStream (v. 9) libxslt-1.1.34-14.el9_7.1, libxslt-devel-1.1.34-14.el9_7.1
- RHSA-2025:9016 Released 2025-06-12 · Red Hat rating Moderatelibxslt security update
- Red Hat Enterprise Linux AppStream EUS (v.9.4) libxslt-1.1.34-14.el9_4, libxslt-devel-1.1.34-14.el9_4
- RHSA-2025:8676 Released 2025-06-09 · Red Hat rating Moderatelibxslt security update
- Red Hat Enterprise Linux AppStream (v. 8) libxslt-devel-1.1.32-6.2.el8_10
- Red Hat Enterprise Linux BaseOS (v. 8) libxslt-1.1.32-6.2.el8_10
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 14
60 records Highest priority Priority MEDIUM 9 MEDIUM, 51 LOW
Other records, highest priority first
- TI-2023-21273 Apple macOS: A sandboxed process may be able to circumvent sandbox restrictionsPriority MEDIUM 52
- TI-2023-21219 Apple iOS and iPadOS: A remote user may cause an unexpected app termination or arbitrary…Priority MEDIUM 52
- TI-2023-19959 Apple macOS: A sandboxed process may be able to circumvent sandbox restrictionsPriority MEDIUM 52
- Release ·
Apple iOS and iPadOS 17
48 records Highest priority Priority MEDIUM 5 MEDIUM, 43 LOW
Other records, highest priority first
- TI-2023-21219 Apple iOS and iPadOS: A remote user may cause an unexpected app termination or arbitrary…Priority MEDIUM 52
- TI-2023-21698 Code injection in Apple iOS and iPadOSPriority MEDIUM 47
- TI-2023-21266 Apple iOS and iPadOS: A remote attacker may be able to break out of Web Content sandboxPriority MEDIUM 47
Show 5 more groups
- Release ·
Apple watchOS 10
37 records Highest priority Priority MEDIUM 5 MEDIUM, 32 LOW
Other records, highest priority first
- TI-2023-21219 Apple iOS and iPadOS: A remote user may cause an unexpected app termination or arbitrary…Priority MEDIUM 52
- TI-2023-21698 Code injection in Apple iOS and iPadOSPriority MEDIUM 47
- TI-2023-21266 Apple iOS and iPadOS: A remote attacker may be able to break out of Web Content sandboxPriority MEDIUM 47
- Release ·
Apple tvOS 17
34 records Highest priority Priority MEDIUM 4 MEDIUM, 30 LOW
Other records, highest priority first
- TI-2023-21219 Apple iOS and iPadOS: A remote user may cause an unexpected app termination or arbitrary…Priority MEDIUM 52
- TI-2023-21698 Code injection in Apple iOS and iPadOSPriority MEDIUM 47
- TI-2023-21266 Apple iOS and iPadOS: A remote attacker may be able to break out of Web Content sandboxPriority MEDIUM 47
- Release ·
Apple macOS 13.6
18 records Highest priority Priority LOW 18 LOW
Other records, highest priority first
- TI-2023-22366 Code injection in Apple iOS and iPadOSPriority LOW 37
- TI-2023-21695 Use after free in Apple iOS and iPadOSPriority LOW 36
- TI-2023-21687 Apple iOS and iPadOS: An app may be able to execute arbitrary code with kernel privilegesPriority LOW 36
- Release ·
Apple macOS 12.7
14 records Highest priority Priority LOW 14 LOW
Other records, highest priority first
- TI-2023-22366 Code injection in Apple iOS and iPadOSPriority LOW 37
- TI-2023-21231 Apple iOS and iPadOS: An app may be able to execute arbitrary code with kernel privilegesPriority LOW 36
- TI-2023-21228 Apple iOS and iPadOS: An app may be able to execute arbitrary code with kernel privilegesPriority LOW 36
- Release ·
Apple iOS and iPadOS 16.7
13 records Highest priority Priority MEDIUM 1 MEDIUM, 12 LOW
Other records, highest priority first
- TI-2023-21266 Apple iOS and iPadOS: A remote attacker may be able to break out of Web Content sandboxPriority MEDIUM 47
- TI-2023-22366 Code injection in Apple iOS and iPadOSPriority LOW 37
- TI-2023-21692 Apple iOS and iPadOS: A user may be able to elevate privilegesPriority LOW 36
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat AI Inference Server 3.2 | Fixed | RHSA-2026:25096, RHSA-2026:7335 |
| Red Hat AI Inference Server 3.3 | Fixed | RHSA-2026:16008, RHSA-2026:16009, RHSA-2026:16174, RHSA-2026:8746, RHSA-2026:8747, RHSA-2026:8748 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2025:8676 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:6266 |
| Red Hat Enterprise Linux AppStream E4S (v.9.2) | Fixed | RHSA-2026:29811 |
| Red Hat Enterprise Linux AppStream EUS (v.9.4) | Fixed | RHSA-2025:9016 |
| Red Hat Enterprise Linux AppStream EUS (v.9.6) | Fixed | RHSA-2026:6499 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2025:8676 |
| Red Hat Update Infrastructure 5 | Fixed | RHSA-2026:10065 |
Not affected: 2 products
- Red Hat Enterprise Linux 10
- Red Hat Update Infrastructure 5
Timeline
- 2026-10-02 Threatist record created from CVE-2023-40403
- 2026-10-03 Alias added: GHSA-j822-w26r-9cxf
References
Advisory 9
- https://support.apple.com/en-us/HT213938
- https://support.apple.com/en-us/HT213932
- https://support.apple.com/en-us/HT213927
- https://support.apple.com/en-us/HT213931
- https://support.apple.com/en-us/HT213936
- https://support.apple.com/en-us/HT213940
- https://support.apple.com/en-us/HT213937
- http://seclists.org/fulldisclosure/2023/Oct/5
- http://seclists.org/fulldisclosure/2023/Oct/10
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-2023-40403 · CVE Program
- CVE-2023-40403 · NVD
- FIRST EPSS
- GHSA-j822-w26r-9cxf · GitHub Advisory Database · CC BY 4.0
- CVE-2023-40403 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences