CVE-2023-32373
Apple Multiple Products WebKit Use-After-Free Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 12 June 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 12.17% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 22 May 2023 · due 12 June 2023
- Weakness
- CWE-416
- Affected
- apple/safari · apple/ipados · apple/iphone os · apple/macos · apple/tvos · apple/watchos · redhat/enterprise linux · webkitgtk/webkitgtk\+
- Source
- product-security@apple.com
EPSS 12.2% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://support.apple.com/HT213757, https://support.apple.com/HT213758, https://support.apple.com/HT213761, https://support.apple.com/HT213762, https://support.apple.com/HT213764, https://support.apple.com/HT213765; https://nvd.nist.gov/vuln/detail/CVE-2023-32373
References
- https://security.gentoo.org/glsa/202401-04Third Party Advisory
- https://support.apple.com/en-us/HT213757Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213758Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213761Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213762Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213764Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213765Release Notes, Vendor Advisory
- https://security.gentoo.org/glsa/202401-04Third Party Advisory
- https://support.apple.com/en-us/HT213757Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213758Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213761Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213762Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213764Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213765Release Notes, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32373US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.