PatchSiren cyber security CVE debrief
CVE-2026-65336 Apple CVE debrief
Apple addressed an issue through improved state management in various products, which could lead to an unexpected Safari crash when processing maliciously crafted web content. This issue affects Safari, iOS, iPadOS, macOS Tahoe, and visionOS, with patches available in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, and visionOS 27. Defenders should review the official advisory for specific affected versions and update accordingly. The vulnerability could be triggered by processing malicious web content, potentially causing an unexpected Safari crash.
- Vendor
- Apple
- Product
- Safari
- CVSS
- MEDIUM 4.3
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-08-17
- Original CVE updated
- 2026-09-14
- Advisory published
- 2026-08-17
- Advisory updated
- 2026-09-14
Who should care
Defenders responsible for Apple products, particularly those exposed to untrusted web content, should assess exposure and prioritize patching. This includes IT and security teams managing Apple devices, as well as operators and administrators of affected systems. Prioritization should be based on the potential impact of an unexpected Safari crash and the likelihood of exposure to malicious web content.
Why it matters
Defenders should prioritize verifying and applying patches for affected Apple products, particularly those exposed to untrusted web content, to prevent potential unexpected Safari crashes.
- Potential for unexpected Safari crashes
- Need for verification and application of patches
- Importance of monitoring for malicious web content
Technical summary
The vulnerability, addressed in various Apple products, could lead to an unexpected Safari crash when processing maliciously crafted web content. The issue was addressed through improved state management. Affected products include Safari, iOS, iPadOS, macOS Tahoe, and visionOS. Patches are available in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, and visionOS 27. Defenders should focus on verifying and applying patches, assessing exposure, and monitoring for potential impacts.
Defensive priority
Defenders should prioritize verifying and applying patches for affected Apple products, particularly those exposed to untrusted web content.
Recommended defensive actions
- Verify and apply patches for affected Apple products
- Assess exposure of Apple products to untrusted web content
- Monitor for unexpected Safari crashes
- Review compensating controls for exposed systems while remediation is scheduled and verified
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
Evidence notes
The CVE record and NVD entry provide details on the vulnerability and affected products. Apple has released patches for the issue in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, and visionOS 27.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-65336 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-65336
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-65336 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-65336
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
-
Source reference
Unverified legacy reference
URL: https://support.apple.com/en-us/148281
[email protected] - Release Notes, Vendor Advisory
-
Source reference
Unverified legacy reference
URL: https://support.apple.com/en-us/148282
[email protected] - Release Notes, Vendor Advisory
-
Source reference
Unverified legacy reference
URL: https://support.apple.com/en-us/148286
-
Source reference
Unverified legacy reference
URL: https://support.apple.com/en-us/148287
[email protected] - Release Notes, Vendor Advisory
-
Source reference
Unverified legacy reference
URL: https://support.apple.com/en-us/149038
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.