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Full vulnerability report · 2022
CVE-2022-26709High confidence

A use after free issue was addressed with improved memory management

Apple · macOS

8.8HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

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-2022-31259

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Fix not verified
01

What, why and how

A use after free issue was addressed with improved memory management. This issue is fixed in tvOS 15.5, iOS 15.5 and iPadOS 15.5, watchOS 8.6, macOS Monterey 12.4, Safari 15.5. Processing maliciously crafted web content may lead to arbitrary code execution.

What

A use after free issue was addressed with improved memory management. This issue is fixed in tvOS 15.5, iOS 15.5 and iPadOS 15.5, watchOS 8.6, macOS Monterey 12.4, Safari 15.5. Processing maliciously crafted web content may lead to arbitrary code execution.

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

What

A use after free issue was addressed with improved memory management. This issue is fixed in tvOS 15.5, iOS 15.5 and iPadOS 15.5, watchOS 8.6, macOS Monterey 12.4, Safari 15.5. Processing maliciously crafted web content may lead to arbitrary code execution.

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

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.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

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 → Use After Free → execute code or commands in the affected security context
Attack surface
Network
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-416

CWE-416: Use After Free. The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory belongs to the code that operates on the new pointer.

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:R/S:U/C:H/I:H/A:H

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.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
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkUnauthenticatedRemote code executionCWE-416
A

Official authority intelligence

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

BSI · German · WID-SEC-2022-1057Apple macOS: Mehrere Schwachstellen

Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in Apple macOS ausnutzen, um seine Privilegien zu erweitern, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen und im schlimmsten Fall das System zu kompromittieren.

Official advisory
BSI · German · WID-SEC-2022-2044Red Hat Enterprise Linux: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um beliebigen Programmcode auszuführen, Dateien zu manipulieren, Informationen offenzulegen oder einen Denial of Service Zustand herbeizuführen.

Official advisory
CERT-FR · French · CERTFR-2022-AVI-467Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2022-26697 Référence CVE CVE-2022-26698 https://www.cve.org/CVERecord?id=CVE-2022-26698 Référence CVE CVE-2022-26700 https://www.cve.org/CVERecord?id=CVE-2022-26700 Référence CVE CVE-2022-26701 https://www.cve.org/CVERecord?id=CVE-2022-26701 Référence CVE CVE-2022-26702 https://www.cve.org/CVERecord?id=CVE-2022-26702 Référence CVE CVE-2022-26703 https://www.cve.org/CVERecord?id=CVE-2022-26703 Référence CVE CVE-2022-26704 https://www.cve.org/CVERecord?id=CVE-2022-26704 Référence CVE CVE-2022-26706 https://www.cve.org/CVERecord?id=CVE-2022-26706 Référence CVE CVE-2022-26708 https://www.cve.org/CVERecord?id=CVE-2022-26708 Référence CVE CVE-2022-26709 https://www.cve.org/CVERecord?id=CVE-2022-26709 Référence CVE CVE-2022-26710 https://www.cve.org/CVERecord?id=CVE-2022-26710 Référence CVE CVE-2022-26711 https://www.cve.org/CVERecord?id=CVE-2022-26711 Référence CVE CVE-2022-26712 https://www.cve.org/CVERecord?id=CVE-2022-26712 Référence CVE CVE-2022-26714 https://www.cve.org/CVERecord?id=CVE-2022-26714 Référence CVE CVE-2022-26715 https://www.cve.org/CVERecord?id=CVE-2022-26715 Référence CVE CVE-2022-26716 https://www.cve.org/CVERecord?id=CVE-2022-26716 Référence CVE CVE-2022-26717 https://www.cve.org/CVERecord?id=CVE-2022-26717 Référence CVE CVE-2022-26718 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2022-AVI-466Multiples vulnérabilités dans les produits Apple

d?id=CVE-2022-26697 Référence CVE CVE-2022-26698 https://www.cve.org/CVERecord?id=CVE-2022-26698 Référence CVE CVE-2022-26700 https://www.cve.org/CVERecord?id=CVE-2022-26700 Référence CVE CVE-2022-26701 https://www.cve.org/CVERecord?id=CVE-2022-26701 Référence CVE CVE-2022-26702 https://www.cve.org/CVERecord?id=CVE-2022-26702 Référence CVE CVE-2022-26703 https://www.cve.org/CVERecord?id=CVE-2022-26703 Référence CVE CVE-2022-26704 https://www.cve.org/CVERecord?id=CVE-2022-26704 Référence CVE CVE-2022-26706 https://www.cve.org/CVERecord?id=CVE-2022-26706 Référence CVE CVE-2022-26708 https://www.cve.org/CVERecord?id=CVE-2022-26708 Référence CVE CVE-2022-26709 https://www.cve.org/CVERecord?id=CVE-2022-26709 Référence CVE CVE-2022-26710 https://www.cve.org/CVERecord?id=CVE-2022-26710 Référence CVE CVE-2022-26711 https://www.cve.org/CVERecord?id=CVE-2022-26711 Référence CVE CVE-2022-26712 https://www.cve.org/CVERecord?id=CVE-2022-26712 Référence CVE CVE-2022-26714 https://www.cve.org/CVERecord?id=CVE-2022-26714 Référence CVE CVE-2022-26715 https://www.cve.org/CVERecord?id=CVE-2022-26715 Référence CVE CVE-2022-26716 https://www.cve.org/CVERecord?id=CVE-2022-26716 Référence CVE CVE-2022-26717 https://www.cve.org/CVERecord?id=CVE-2022-26717 Référence CVE CVE-2022-26718 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 < 12.4, unspecified < 15.5; watchOS: unspecified < 8.6, unspecified < 15.5
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 1 Nov 2022 · Last source change 6 May 2025, 19:08 UTC · CWE-416 · Use After Free

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-2022-31259
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCISA ADP
NVD statusNVD modified after enrichment

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.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
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-2022-26709 · cve.blacktree.nl