CVE-2026-65390
HIGHCVSS 8.8/10EPSS 0.17%
Last modified
CVE-2026-65390 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An integer overflow was addressed with improved input validation. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
Description
An integer overflow was addressed with improved input validation. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Safari | < 26.6.1 |
| Apple | Ipados | < 26.6.1 |
| Apple | Iphone Os | < 26.6.1 |
| Apple | Macos | < 26.6.2 |
| Apple | Tvos | < 27.0 |
| Apple | Visionos | < 27.0 |
| Apple | Watchos | < 27.0 |
References
- https://support.apple.com/en-us/148281Release Notes, Vendor Advisory
- https://support.apple.com/en-us/148282Release Notes, Vendor Advisory
- https://support.apple.com/en-us/148286Release Notes, Vendor Advisory
- https://support.apple.com/en-us/149036Release Notes, Vendor Advisory
- https://support.apple.com/en-us/149037Release Notes, Vendor Advisory
- https://support.apple.com/en-us/149038Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-65390?
An integer overflow was addressed with improved input validation. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.
How severe is CVE-2026-65390?
CVE-2026-65390 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2026-65390?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-65390?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST