CVE-2026-20664
MEDIUMCVSS 4.3/10EPSS 0.72%
Last modified
CVE-2026-20664 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. EPSS estimates a 0.72% chance of exploitation in the next 30 days.
Description
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Safari | < 26.4 |
| Apple | Ipados | < 26.4 |
| Apple | Iphone Os | < 26.4 |
| Apple | Macos | >= 26.0, < 26.4 |
| Apple | Visionos | < 26.4 |
References
- https://support.apple.com/en-us/126792Release Notes, Vendor Advisory
- https://support.apple.com/en-us/126794Release Notes, Vendor Advisory
- https://support.apple.com/en-us/126799Release Notes, Vendor Advisory
- https://support.apple.com/en-us/126800Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2026-20664?
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash.
How severe is CVE-2026-20664?
CVE-2026-20664 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.72% probability of exploitation in the next 30 days.
How do I fix CVE-2026-20664?
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.
Related CVEs from 2026
- CVE-2026-20658A package validation issue was addressed by blocking the vul…7.8
- CVE-2026-2066A weakness has been identified in UTT 进取 520W 1.7.7-180627. …8.8
- CVE-2026-20660A path handling issue was addressed with improved logic. Thi…7.5
- CVE-2026-20661An authorization issue was addressed with improved state man…4.6
- CVE-2026-20662An authorization issue was addressed with improved state man…4.6
- CVE-2026-20663The issue was resolved by sanitizing logging. This issue is …3.3
- CVE-2026-20665This issue was addressed through improved state management. …6.5
- CVE-2026-20666An authorization issue was addressed with improved state man…5.5
- CVE-2026-20667A logic issue was addressed with improved checks. This issue…8.8
- CVE-2026-20668A logging issue was addressed with improved data redaction. …5.5
- CVE-2026-20669A parsing issue in the handling of directory paths was addre…5.5
- CVE-2026-2067A security vulnerability has been detected in UTT 进取 520W 1.…8.8
Are you affected by CVE-2026-20664?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST