What is CVE-2023-23529?
A type confusion issue was addressed with improved checks. This issue is fixed in iOS 15.7.4 and iPadOS 15.7.4, iOS 16.3.1 and iPadOS 16.3.1, macOS Ventura 13.2.1, Safari 16.3. 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.
The record classifies CVE-2023-23529 under weakness class CWE-843. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity, availability. 4 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 1343 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 8.8 — HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS (FIRST)
- 9.5% probability of exploitation in the next 30 days, higher than 95.3% of all scored CVEs
- CISA KEV
- Listed since 2023-02-14, federal remediation deadline 2023-03-07
- Threadlinqs priority
- 9/10 — CISA KEV-listed, which Threadlinqs floors at 9
- Published
- 2023-02-27, last modified 2025-10-21
Is CVE-2023-23529 being exploited?
CISA added CVE-2023-23529 to the Known Exploited Vulnerabilities catalog on 2023-02-14, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2023-03-07 under BOD 22-01. Weaponised exploit code for CVE-2023-23529 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 47 in the Threadlinqs vulnerability feed.
- trickest/cve (trickest)
Affected products and versions
- Apple: Safari, Ipados, Iphone Os, Macos
How to fix CVE-2023-23529
The record marks a vendor fix as available for CVE-2023-23529. Patch reference: https://support.apple.com/en-us/HT213638. Vendor advisory: https://support.apple.com/en-us/HT213633. Because CVE-2023-23529 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2023-03-07. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.
Threat activity tracking CVE-2023-23529
1 tracked threat in the Threadlinqs corpus references CVE-2023-23529, either in the campaign’s CVE list or as an indicator on the campaign record.
Sources
Enriched from CVE.org, NVD, FIRST EPSS, CISA KEV, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.