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Full vulnerability report · 2023
CVE-2023-32409High confidence

Apple Multiple Products WebKit Sandbox Escape Vulnerability

Apple · Multiple Products

8.6HighCVSS 3.1
Recommended action
Protect now

CISA confirms exploitation in the wild and lists 2023-06-12 as the remediation due date.

Fix not verified
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

1 package state
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archiveqtwebkit-opensource-srcUnder evaluationCanonical reports that the package might be affected and still needs evaluation or fixing.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-36653

CISA KEV mirrored by ENISA

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.

EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 22 May 2023. Evidence sources: cisa_kev.
ENISA score
8.6 · CVSS 3.1
Advisory evidence
3 linked advisory records
Recommended actionProtect now

CISA confirms exploitation in the wild and lists 2023-06-12 as the remediation due date.

Fix not verified
01

What, why and how

Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit contain an unspecified vulnerability that can allow a remote attacker to break out of the Web Content sandbox. 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.

What

Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit contain an unspecified vulnerability that can allow a remote attacker to break out of the Web Content sandbox. 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.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit contain an unspecified vulnerability that can allow a remote attacker to break out of the Web Content sandbox. 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.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2023-05-22.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration.
CWE not yet assigned
CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SChangedScope: The attack can affect a component governed by a different security authority.CNoneConfidentiality impact: No direct loss is represented by this metric.IHighIntegrity impact: A successful attack can cause a major loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCISA KEV
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2023-36653Known-exploited evidence recorded

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.

Official EUVD record
BSI · German · WID-SEC-2023-1251Apple macOS: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apple macOS ausnutzen, um Administratorrechte zu erlangen, beliebigen Programmcode auszuführen, seine Privilegien zu erweitern, Informationen offenzulegen, Dateien zu manipulieren, einen Denial of Service Zustand herbeizuführen oder Sicherheitsvorkehrungen zu umgehen.

Official advisory
BSI · German · WID-SEC-2023-1252Apple iOS/iPadOS: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apple iOS und Apple iPadOS ausnutzen, um Administratorrechte zu erlangen, beliebigen Programmcode auszuführen, seine Privilegien zu erweitern, Informationen offenzulegen, Dateien zu manipulieren, einen Denial of Service Zustand herbeizuführen oder Sicherheitsvorkehrungen zu umgehen.

Official advisory
BSI · German · WID-SEC-2023-1246Apple Safari: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apple Safari ausnutzen, um beliebigen Programmcode auszuführen, Informationen offenzulegen oder Sicherheitsvorkehrungen zu umgehen.

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0581Multiples vulnérabilités dans les produits Apple

le.com/en-us/HT213847 Référence CVE CVE-2023-23540 https://www.cve.org/CVERecord?id=CVE-2023-23540 Référence CVE CVE-2023-28319 https://www.cve.org/CVERecord?id=CVE-2023-28319 Référence CVE CVE-2023-28320 https://www.cve.org/CVERecord?id=CVE-2023-28320 Référence CVE CVE-2023-28321 https://www.cve.org/CVERecord?id=CVE-2023-28321 Référence CVE CVE-2023-28322 https://www.cve.org/CVERecord?id=CVE-2023-28322 Référence CVE CVE-2023-2953 https://www.cve.org/CVERecord?id=CVE-2023-2953 Référence CVE CVE-2023-32364 https://www.cve.org/CVERecord?id=CVE-2023-32364 Référence CVE CVE-2023-32381 https://www.cve.org/CVERecord?id=CVE-2023-32381 Référence CVE CVE-2023-32409 https://www.cve.org/CVERecord?id=CVE-2023-32409 Référence CVE CVE-2023-32416 https://www.cve.org/CVERecord?id=CVE-2023-32416 Référence CVE CVE-2023-32418 https://www.cve.org/CVERecord?id=CVE-2023-32418 Référence CVE CVE-2023-32429 https://www.cve.org/CVERecord?id=CVE-2023-32429 Référence CVE CVE-2023-32433 https://www.cve.org/CVERecord?id=CVE-2023-32433 Référence CVE CVE-2023-32437 https://www.cve.org/CVERecord?id=CVE-2023-32437 Référence CVE CVE-2023-32441 https://www.cve.org/CVERecord?id=CVE-2023-32441 Référence CVE CVE-2023-32442 https://www.cve.org/CVERecord?id=CVE-2023-32442 Référence CVE CVE-2023-32443 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0390Multiples vulnérabilités dans les produits Apple

d?id=CVE-2023-32398 Référence CVE CVE-2023-32399 https://www.cve.org/CVERecord?id=CVE-2023-32399 Référence CVE CVE-2023-32400 https://www.cve.org/CVERecord?id=CVE-2023-32400 Référence CVE CVE-2023-32402 https://www.cve.org/CVERecord?id=CVE-2023-32402 Référence CVE CVE-2023-32403 https://www.cve.org/CVERecord?id=CVE-2023-32403 Référence CVE CVE-2023-32404 https://www.cve.org/CVERecord?id=CVE-2023-32404 Référence CVE CVE-2023-32405 https://www.cve.org/CVERecord?id=CVE-2023-32405 Référence CVE CVE-2023-32407 https://www.cve.org/CVERecord?id=CVE-2023-32407 Référence CVE CVE-2023-32408 https://www.cve.org/CVERecord?id=CVE-2023-32408 Référence CVE CVE-2023-32409 https://www.cve.org/CVERecord?id=CVE-2023-32409 Référence CVE CVE-2023-32410 https://www.cve.org/CVERecord?id=CVE-2023-32410 Référence CVE CVE-2023-32411 https://www.cve.org/CVERecord?id=CVE-2023-32411 Référence CVE CVE-2023-32412 https://www.cve.org/CVERecord?id=CVE-2023-32412 Référence CVE CVE-2023-32413 https://www.cve.org/CVERecord?id=CVE-2023-32413 Référence CVE CVE-2023-32414 https://www.cve.org/CVERecord?id=CVE-2023-32414 Référence CVE CVE-2023-32415 https://www.cve.org/CVERecord?id=CVE-2023-32415 Référence CVE CVE-2023-32419 https://www.cve.org/CVERecord?id=CVE-2023-32419 Référence CVE CVE-2023-32420 https://www.cve.org/CVERecord?id=

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
macOS: unspecified < 13.4; Safari: unspecified < 16.5; watchOS: unspecified < 9.5; iOS and iPadOS: unspecified < 15.7, unspecified < 16.5; tvOS: unspecified < 16.5
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 23 Jun 2023 · Last source change 12 Jan 2026, 19:59 UTC · CWE not yet assigned

CVE recordCVE.org · 5.2
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-36653
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceUnavailable
NVD statusNVD enriched

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates →
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    unspecified < 13.4; unspecified < 16.5; unspecified < 9.5; unspecified < 15.7 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    macOS: unspecified < 13.4; Safari: unspecified < 16.5; watchOS: unspecified < 9.5; iOS and iPadOS: unspecified < 15.7, unspecified < 16.5; tvOS: unspecified < 16.5 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Added to CISA KEV
ENISA EUVD · EUVD-2023-36653↗CISA KEV record↗CVE authority or vendor reference↗Vendor advisory↗Vendor advisory↗Vendor advisory↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-32409 · cve.blacktree.nl