A remote attacker may be able to cause unexpected application termination or heap corruption
Apple · iOS and iPadOS
9.8CriticalCVSS 3.1
Recommended action
Within 72 hours
Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.
Fix not verified
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-2026-49522
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 72 hours
Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.
Fix not verified
01
What, why and how
An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6. A remote attacker may be able to cause unexpected application termination or heap corruption.
What
An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6. A remote attacker may be able to cause unexpected application termination or heap corruption.
Why
A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.
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
An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6. A remote attacker may be able to cause unexpected application termination or heap corruption.
Why
A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.
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.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 → Out-of-bounds Write → 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
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: 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:N/AC:L/PR:N/UI:N/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.UINoneUser interaction: No action by another user is required.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
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.
NetworkUnauthenticatedCWE-787
A
Official authority intelligence
Only matched European and national findings are included. Language selectors and unavailable sources are omitted.
ENISA EUVD · EUVD-2026-49522Official EUVD mapping
0 linked advisory records.
Official EUVD recordBSI · German · WID-SEC-W-2026-2872Apple Safari, macOS, iOS und iPadOS: Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in Apple Safari, Apple macOS, Apple iOS und Apple iPadOS ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, Daten zu manipulieren, Speicherbeschädigungen zu verursachen oder einen Denial-of-Service-Zustand herbeizuführen.
Official advisoryBSI · German · WID-SEC-W-2026-2543Apple macOS (Tahoe, Sonoma und Sequoia): Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in Apple macOS Tahoe, Sonoma und Sequoia ausnutzen, um seine Privilegien zu erhöhen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, und um Sicherheitsvorkehrungen zu umgehen.
Official advisoryBSI · German · WID-SEC-W-2026-2537Apple iOS und iPadOS: Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in Apple iOS und Apple iPadOS ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, und um Sicherheitsvorkehrungen zu umgehen.
Official advisoryCERT-FR · French · CERTFR-2026-AVI-1038Multiples vulnérabilités dans les produits Apple
Official advisoryCERT-FR · French · CERTFR-2026-AVI-0938Multiples vulnérabilités dans les produits Apple
d?id=CVE-2026-64763
Référence CVE CVE-2026-64764
https://www.cve.org/CVERecord?id=CVE-2026-64764
Référence CVE CVE-2026-64765
https://www.cve.org/CVERecord?id=CVE-2026-64765
Référence CVE CVE-2026-64766
https://www.cve.org/CVERecord?id=CVE-2026-64766
Référence CVE CVE-2026-64767
https://www.cve.org/CVERecord?id=CVE-2026-64767
Référence CVE CVE-2026-64768
https://www.cve.org/CVERecord?id=CVE-2026-64768
Référence CVE CVE-2026-64769
https://www.cve.org/CVERecord?id=CVE-2026-64769
Référence CVE CVE-2026-64770
https://www.cve.org/CVERecord?id=CVE-2026-64770
Référence CVE CVE-2026-64771
https://www.cve.org/CVERecord?id=CVE-2026-64771
Référence CVE CVE-2026-64772
https://www.cve.org/CVERecord?id=CVE-2026-64772
Référence CVE CVE-2026-64774
https://www.cve.org/CVERecord?id=CVE-2026-64774
Référence CVE CVE-2026-64775
https://www.cve.org/CVERecord?id=CVE-2026-64775
Référence CVE CVE-2026-64776
https://www.cve.org/CVERecord?id=CVE-2026-64776
Référence CVE CVE-2026-64783
https://www.cve.org/CVERecord?id=CVE-2026-64783
Gestion détaillée du document
le 28 juillet 2026
Version initiale
Alertes
Avis
Bulletins d’actualités
Mentions légales
Conditions générales
À propos
Contact
cyber.gouv.fr
service-public.fr
legifrance.gouv.fr
info.gouv.fr
france.fr
info.gouv.fr/risques
Premier Ministre / Secrétariat Général de
Official advisoryCSIRT Italia · Italian · aggiornamenti-di-sicurezza-apple-17Aggiornamenti di sicurezza Apple
nuova finestra
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CVE-2026-43735 : apre una nuova finestra
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CVE-2026-43812 : apre una nuova finestra
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CVE-2026-39877 : apre una nuova finestra
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CVE-2026-43778 : apre una nuova finestra
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CVE-2026-43733 : apre una nuova finestra
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CVE-2026-43810 : apre una nuova finestra
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CVE-2026-64738 : apre una nuova finestra
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CVE-2026-64739 : apre una nuova finestra
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CVE-2026-28990 : apre una nuova finestra
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CVE-2026-64692 : apre una nuova finestra
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CVE-2026-64770 : apre una nuova finestra
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CVE-2026-64771 : apre una nuova finestra
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CVE-2026-43776 : apre una nuova finestra
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CVE-2026-64695 : apre una nuova finestra
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CVE-2026-64772 : apre una nuova finestra
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CVE-2026-43731 : apre una nuova finestra
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CVE-2026-64774 : apre una nuova finestra
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CVE-2026-65346 : apre una nuova finestra
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Riferimenti (3)
https://support.apple.com/en-us/148281
https://support.apple.com/en-us/148282
https://support.apple.com/en-us/148287
Change log
Titolo della tabella
Versione
Note
Data
1.0
Pubblicato il 18-08-2026
18/08/2026
Impatto sistemico
Alto (66.41)
Argomenti
Apple
iOS
iPadOS
macOS Tahoe
Data pubblicazione
18/08/26 ore 15:35
Data Ultimo Aggiornamento
18/08/26 ore 15:35
Informazioni su Agenzia per la
cybersicurezza nazionale
Contatti
info@acn.gov.it
Denunce, segnalazioni o es
Official advisoryNCSC-NL · Dutch · NCSC-2026-0267Kwetsbaarheden verholpen in Apple MacOS
An out-of-bounds write vulnerability allowing remote attackers to cause application crashes or heap corruption was addressed via improved input validation in multiple Apple operating systems including iOS, iPadOS, macOS, tvOS, and visionOS versions 26.6 and 15.7.8.
Official advisoryNCSC-NL · Dutch · NCSC-2026-0266Kwetsbaarheden verholpen in Apple iOS en iPadOS
An out-of-bounds write vulnerability allowing remote attackers to cause application crashes or heap corruption was addressed via improved input validation in multiple Apple operating systems including iOS, iPadOS, macOS, tvOS, and visionOS versions 26.6 and 15.7.8.
Official advisoryNCSC-NL · Dutch · NCSC-2026-0319Kwetsbaarheden verholpen in Apple iOS en iPadOS
An out-of-bounds write vulnerability in multiple Apple operating systems was addressed by improved input validation to prevent remote attackers from causing application termination or heap corruption.
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
< 18.7.10; < 26.6; < 15.7.8
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 27 Jul 2026 · Last source change 17 Aug 2026, 21:30 UTC · CWE-787 · Out-of-bounds Write
CVE recordCVE.org · 5.2
CVSS sourceCISA ADP
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-2026-49522
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.
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.
CVE-2026-64772: A remote attacker may be able to cause unexpected application termination or heap corruption | BlackTree