CVE-2023-23529

Exp

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.

Published: 2023-02-27 Last update: 2025-10-23 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-23529 is rated Critical Active Threat (98.4/100): CVSS High severity, with high exploitation likelihood (EPSS 9.50%, 95th percentile). CISA KEV confirms active exploitation (added 2023-02-14) affecting Apple / Multiple Products. a weakness (CWE-843) Unauthenticated remote administrative access may be possible. EPSS rose +9.45% over the last day, indicating growing attacker interest. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2023-23529

Name: Apple Multiple Products WebKit Type Confusion Vulnerability · CISA KEV detail

Exploit added: 2023-02-14

Action due: 2023-03-07

Required action: Apply updates per vendor instructions.

Exploit prediction scoring system (EPSS) score for CVE-2023-23529

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.05% 9.50% +9.45%
2 2026-03-22 0.04% 0.05% +0.01%
3 2026-02-26 — 0.04% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-23529

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-23529

OS Trackers for CVE-2023-23529

vendor priority summary link
debian not yet assigned CVE-2023-23529 not yet assigned priority: Debian including 2 source packages (webkit2gtk, wpewebkit), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2023-23529
gentoo high CVE-2023-23529: 1 GLSA(s) (202305-32), 1 atom(s) (net-libs/webkit-gtk); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-23529
redhat high — https://access.redhat.com/security/cve/CVE-2023-23529
suse high CVE-2023-23529 severity important: SUSE including 132 source package names (WebKit2GTK-4.0-lang-2.38.5-150400.4.34.2, WebKit2GTK-4.1-lang-2.38.5-150400.4.34.2, …), 409 product×package rows across 49 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (49 product lines)): Fixed 409. https://www.suse.com/security/cve/CVE-2023-23529/
ubuntu high CVE-2023-23529 high priority: Ubuntu including 5 source packages (qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk, wpewebkit), 43 status rows across 10 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): ignored 20, DNE 14, needs-triage 3, not-affected 3, released 3. https://ubuntu.com/security/CVE-2023-23529

Affected software / configurations for CVE-2023-23529

Vendor Product Version Raw CPE
apple safari < 16.3 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple ipados < 15.7.4 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple ipados >= 16.0, < 16.3.1 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone_os < 15.7.4 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple iphone_os >= 16.0, < 16.3.1 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos >= 13.0, < 13.2.1 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

References for CVE-2023-23529

cvelogic Threat Intelligence