CVE-2023-39434
HIGHCVSS 8.8/10EPSS 1.52%
Last modified
CVE-2023-39434 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 17 and iPadOS 17, watchOS 10, macOS Sonoma 14. EPSS estimates a 1.52% chance of exploitation in the next 30 days.
Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 17 and iPadOS 17, watchOS 10, macOS Sonoma 14. Processing web content may lead to arbitrary code execution.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 17.0 |
| Apple | Iphone Os | < 17.0 |
| Apple | Macos | < 14.0 |
| Apple | Watchos | < 10.0 |
References
- http://seclists.org/fulldisclosure/2023/Oct/3Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Oct/8Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Oct/9Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2023/09/28/3Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT213937Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213938Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213940Release Notes, Vendor Advisory
- http://seclists.org/fulldisclosure/2023/Oct/3Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Oct/8Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Oct/9Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2023/09/28/3Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT213937Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213938Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213940Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-39434?
A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 17 and iPadOS 17, watchOS 10, macOS Sonoma 14. Processing web content may lead to arbitrary code execution.
How severe is CVE-2023-39434?
CVE-2023-39434 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.52% probability of exploitation in the next 30 days.
How do I fix CVE-2023-39434?
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.
Are you affected by CVE-2023-39434?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST