CVE-2023-32409

Exp

The issue was addressed with improved bounds checks. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.8 and iPadOS 15.7.8, Safari 16.5, iOS 16.5 and iPadOS 16.5. A remote attacker may be able to break out of Web Content sandbox. Apple is aware of a report that this issue may have been actively exploited.

Published: 2023-06-23 Last update: 2026-01-13 Assigner: [email protected] Source: [email protected]

NVD Status：Analyzed，CVE State: published

View at NVD, CVE.org, EUVD

Threat Intelligence & Risk Assessment for CVE-2023-32409

KEV EPSS CVSS Affected OS Tracker

Conclusion & alert: CVE-2023-32409 is rated Active Exploitation (77.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.29%). Core evidence: CISA KEV confirms active exploitation (added 2023-05-22) affecting Apple / Multiple Products. Unauthenticated remote administrative access may be possible. Mandatory action: 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-2023-32409

Name: Apple Multiple Products WebKit Sandbox Escape Vulnerability · CISA KEV detail

Exploit added: 2023-05-22

Action due: 2023-06-12

Required action: Apply updates per vendor instructions.

Exploit prediction scoring system (EPSS) score for CVE-2023-32409

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	2026-03-25	0.25%	0.29%	+0.04%
2	2026-03-23	0.25%	0.25%	-0.00%
3	2025-11-21	—	0.25%	—

Full EPSS history (29 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-32409

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.6	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N` 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:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:C) Breaking this can reach past the original component and bite other resources—bigger blast radius. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:N) Service keeps running; no real outage angle.	3.9	4.0	[email protected]
8.6	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N` 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:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:C) Breaking this can reach past the original component and bite other resources—bigger blast radius. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:N) Service keeps running; no real outage angle.	3.9	4.0	134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-32409

OS Trackers for CVE-2023-32409

vendor	priority	summary	link
`debian`	unimportant	CVE-2023-32409 unimportant priority: Debian including 2 source packages (webkit2gtk, wpewebkit), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 8, open 2.	https://security-tracker.debian.org/tracker/CVE-2023-32409
`redhat`	high	—	https://access.redhat.com/security/cve/CVE-2023-32409
`ubuntu`	medium	CVE-2023-32409 medium priority: Ubuntu including 5 source packages (qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk, wpewebkit), 50 status rows across 10 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): DNE 19, ignored 18, not-affected 9, needs-triage 4.	https://ubuntu.com/security/CVE-2023-32409

Affected software / configurations for CVE-2023-32409

Vendor	Product	Version	Raw CPE
apple	safari	< 16.5	cpe:2.3:a:apple:safari::::::::
apple	ipados	>= 15.0, < 15.7.8	cpe:2.3:o:apple:ipados::::::::
apple	ipados	>= 16.0, < 16.5	cpe:2.3:o:apple:ipados::::::::
apple	iphone_os	>= 15.0, < 15.7.8	cpe:2.3:o:apple:iphone_os::::::::
apple	iphone_os	>= 16.0, < 16.5	cpe:2.3:o:apple:iphone_os::::::::
apple	macos	>= 13.0, < 13.4	cpe:2.3:o:apple:macos::::::::
apple	tvos	< 16.5	cpe:2.3:o:apple:tvos::::::::
apple	watchos	< 9.5	cpe:2.3:o:apple:watchos::::::::

References for CVE-2023-32409

URL	Tags
https://support.apple.com/en-us/HT213757	Vendor Advisory
https://support.apple.com/en-us/HT213758	Vendor Advisory
https://support.apple.com/en-us/HT213761	Vendor Advisory
https://support.apple.com/en-us/HT213762	Vendor Advisory
https://support.apple.com/en-us/HT213764	Vendor Advisory
https://support.apple.com/en-us/HT213842	Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32409	US Government Resource

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