CVEs / CVE-2023-32373
CVE-2023-32373: Apple Multiple Products WebKit Use-After-Free Vulnerability
- Known exploited in the CISA KEV catalog since 22 May 2023
- high 8.8 CVSS 3.1 (NVD)
- EPSS 12.1% chance of exploitation in the next 30 days, higher than 96% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Apple macOS | from unspecified, before 13.4 | 13.4 |
| Apple Safari | from unspecified, before 16.5 | 16.5 |
| Apple watchOS | from unspecified, before 9.5 | 9.5 |
| Apple iOS and iPadOS | from unspecified, before 15.7 | 15.7 |
| Apple iOS and iPadOS | from unspecified, before 16.5 | 16.5 |
| Apple tvOS | from unspecified, before 16.5 | 16.5 |
Exploitation
| In CISA KEV since | 22 May 2023 |
|---|---|
| Due date for US federal agencies | 12 Jun 2023 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-416 |
References
- CVE-2023-32373 on NVD
- CVE-2023-32373 in the CISA KEV catalog
- https://support.apple.com/HT213757 (cited by CISA)
- https://support.apple.com/HT213758 (cited by CISA)
- https://support.apple.com/HT213761 (cited by CISA)
- https://support.apple.com/HT213762 (cited by CISA)
- https://support.apple.com/HT213764 (cited by CISA)
- https://support.apple.com/HT213765 (cited by CISA)
- CVE-2023-32373 on OSV
- https://security.gentoo.org/glsa/202401-04 Third Party Advisory
- https://support.apple.com/en-us/HT213757 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213758 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213761 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213762 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213764 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213765 Release Notes, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32373 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.