CVE-2025-31277
HIGHCVSS 8.8/10Actively ExploitedEPSS 1.48%
Last modified
CVE-2025-31277 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. CISA has confirmed active exploitation in the wild. EPSS estimates a 1.48% chance of exploitation in the next 30 days.
Description
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to memory corruption.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Safari | < 18.6 |
| Apple | Ipados | < 18.6 |
| Apple | Iphone Os | < 18.6 |
| Apple | Macos | >= 15.0, < 15.6 |
| Apple | Tvos | < 18.6 |
| Apple | Visionos | < 2.6 |
| Apple | Watchos | < 11.6 |
| Webkitgtk | Webkitgtk | < 2.50.0 |
| Wpewebkit | Wpe Webkit | < 2.50.0 |
| Redhat | Enterprise Linux | 6.0 |
| Redhat | Enterprise Linux | 7.0 |
| Redhat | Enterprise Linux | 8.0 |
| Redhat | Enterprise Linux | 9.0 |
| Redhat | Enterprise Linux Aus | 8.2 |
| Redhat | Enterprise Linux Aus | 8.4 |
| Redhat | Enterprise Linux Aus | 8.6 |
| Redhat | Enterprise Linux Els | 7.0 |
| Redhat | Enterprise Linux Eus | 8.4 |
| Redhat | Enterprise Linux Eus | 8.6 |
| Redhat | Enterprise Linux Eus | 9.4 |
| Redhat | Enterprise Linux Tus | 8.6 |
| Redhat | Enterprise Linux Tus | 8.8 |
| Redhat | Enterprise Linux Update Services For Sap Solutions | 8.6 |
| Redhat | Enterprise Linux Update Services For Sap Solutions | 8.8 |
| Redhat | Enterprise Linux Update Services For Sap Solutions | 9.0 |
| Redhat | Enterprise Linux Update Services For Sap Solutions | 9.2 |
References
- https://support.apple.com/en-us/124147Release Notes, Vendor Advisory
- https://support.apple.com/en-us/124149Release Notes, Vendor Advisory
- https://support.apple.com/en-us/124152Release Notes, Vendor Advisory
- https://support.apple.com/en-us/124153Release Notes, Vendor Advisory
- https://support.apple.com/en-us/124154Release Notes, Vendor Advisory
- https://support.apple.com/en-us/124155Release Notes, Vendor Advisory
- http://seclists.org/fulldisclosure/2025/Aug/0Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2025/Jul/30Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2025/Jul/32Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2025/Jul/36Mailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2025:17643Third Party Advisory
- https://access.redhat.com/errata/RHSA-2025:17741Third Party Advisory
- https://access.redhat.com/errata/RHSA-2025:17743Third Party Advisory
- https://access.redhat.com/errata/RHSA-2025:17802Third Party Advisory
- https://access.redhat.com/errata/RHSA-2025:17807Third Party Advisory
- https://access.redhat.com/errata/RHSA-2025:18097Third Party Advisory
- https://access.redhat.com/errata/RHSA-2025:19109Third Party Advisory
- https://access.redhat.com/errata/RHSA-2025:19157Third Party Advisory
- https://access.redhat.com/errata/RHSA-2025:19165Third Party Advisory
- https://access.redhat.com/errata/RHSA-2025:19352Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2025-31277Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2448780Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-31277.jsonThird Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-31277US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-31277?
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to memory corruption.
How severe is CVE-2025-31277?
CVE-2025-31277 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.48% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2025-31277?
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-2025-31277?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST