CVE-2022-42827: Apple iOS and iPadOS Out-of-Bounds Write Vulnerability

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CISA confirms exploitation in the wild and lists 2022-11-15 as the remediation due date.

Fix not verified

What, why and how

Apple iOS and iPadOS kernel contain an out-of-bounds write vulnerability which can allow an application to perform code execution with kernel privileges.

What

Apple iOS and iPadOS kernel contain an out-of-bounds write vulnerability which can allow an application to perform code execution with kernel privileges.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

How

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

What

Apple iOS and iPadOS kernel contain an out-of-bounds write vulnerability which can allow an application to perform code execution with kernel privileges.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

How

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 2022-10-25.

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: local access → Out-of-bounds Write → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface: Local
Privileges required: None: unauthenticated exploitation is possible
User interaction: Required interaction required
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Unchanged: impact remains within the vulnerable component's security authority
Weakness ? CWE means Common Weakness Enumeration: a standard category for the underlying weakness.: CWE-787 ↗
CWE-787: Out-of-bounds Write. The product writes data past the end, or before the beginning, of the intended buffer.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

UnauthenticatedCWE-787CISA KEV

Official authority intelligence

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

ENISA EUVD · EUVD-2022-45890Known-exploited evidence recorded

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.7.1 and iPadOS 15.7.1, iOS 16.1 and iPadOS 16. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..

Official EUVD record

BSI · German · WID-SEC-W-2022-1837Apple iOS & iPadOS: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apple iOS und Apple iPadOS ausnutzen, um beliebigen Programmcode mit Root-Rechten auszuführen, Informationen offenzulegen, Dateien zu manipulieren oder einen Denial of Service Zustand herbeizuführen.

Official advisory

CERT-FR · French · CERTFR-2022-AVI-963Multiples vulnérabilités dans Apple iOS et iPadOS

De multiples vulnérabilités ont été découvertes dans Apple iOS et iPadOS. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et un contournement de la politique de sécurité. Apple indique que la vulnérabilité CVE-2022-42827 serait activement exploitée dans le cadre d'attaques ciblées.

Official advisory

CERT-FR · French · CERTFR-2022-AVI-947Multiples vulnérabilités dans les produits Apple

ur Élévation de privilèges Systèmes affectés iOS versions antérieures à 16.1 iPadOS versions antérieures à 16 macOS Big Sur versions antérieures à 11.7.1 macOS Monterey versions antérieures à 12.6.1 macOS Ventura versions antérieures à 13 Safari versions antérieures à 16.1 tvOS versions antérieures à 16.1 watchOS versions antérieures à 9.1 Résumé De multiples vulnérabilités ont été découvertes dans les produits Apple. Certaines d'entre elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur, une exécution de code arbitraire à distance et un déni de service à distance. Apple indique que la vulnérabilité CVE-2022-42827 serait activement exploitée. Solution Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation). Documentation Bulletin de sécurité Apple HT213488 du 24 octobre 2022 https://support.apple.com/fr-fr/HT213488 Bulletin de sécurité Apple HT213489 du 24 octobre 2022 https://support.apple.com/fr-fr/HT213489 Bulletin de sécurité Apple HT213491 du 24 octobre 2022 https://support.apple.com/fr-fr/HT213491 Bulletin de sécurité Apple HT213492 du 24 octobre 2022 https://support.apple.com/fr-fr/HT213492 Bulletin de sécurité Apple HT213493 du 24 octobre 2022 https://support.apple.com/fr-fr/HT213493 Bulletin

Official advisory

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: unspecified < 16.1; unspecified < 15.7
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. Limit untrusted access and use least privilege until authoritative guidance is available.

Evidence and provenance

Published 1 Nov 2022 · Last source change 21 Oct 2025, 23:15 UTC · CWE-787 · Out-of-bounds Write

CVE recordCVE.org · 5.1

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-2022-45890

Product sourceCNA

Remediation sourceCVE/CNA references

CWE sourceCISA ADP

NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

2022-11-01CVE published

2022-10-25Added to CISA KEV

ENISA EUVD · EUVD-2022-45890↗CISA KEV record↗CVE authority or vendor reference↗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.

Apple iOS and iPadOS Out-of-Bounds Write Vulnerability

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

ENISA European Vulnerability Database

EUVD-2022-45890

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication

Apple iOS and iPadOS Out-of-Bounds Write Vulnerability

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

EUVD-2022-45890

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

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