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Full vulnerability report · 2026
CVE-2026-28979High confidence

An out-of-bounds access issue was addressed with improved bounds checking

Apple · Safari

6.5MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

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-2026-40187

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 actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
01

What, why and how

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected process crash.

What

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected process crash.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may disrupt the affected service.

What

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected process crash.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may disrupt the affected service.

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 Read → disrupt the affected service
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-125 ↗

CWE-125: Out-of-bounds Read. The product reads 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:R/S:U/C:N/I:N/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.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.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.
NetworkUnauthenticatedDenial of serviceCWE-125
A

Official authority intelligence

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

BSI · German · WID-SEC-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 advisory ↗
BSI · German · WID-SEC-2026-2134Apple iOS und iPadOS: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Apple iOS und Apple iPadOS ausnutzen, um Speicherbeschädigungen zu verursachen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.

Official advisory ↗
BSI · German · WID-SEC-2026-2131Apple Safari: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Apple Safari ausnutzen, um einen Denial of Service Angriff durchzuführen oder vertrauliche Informationen offenzulegen.

Official advisory ↗
BSI · German · WID-SEC-2026-2128Apple macOS Tahoe: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Apple macOS Tahoe ausnutzen, um Dateien zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260701Security Bulletin 1 July 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 1 July 2026, published on 1 July 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1038Multiples vulnérabilités dans les produits Apple

ctifs (cf. section Documentation). Documentation Bulletin de sécurité Apple 148281 du 17 août 2026 https://support.apple.com/en-us/148281 Bulletin de sécurité Apple 148282 du 17 août 2026 https://support.apple.com/en-us/148282 Bulletin de sécurité Apple 148287 du 17 août 2026 https://support.apple.com/en-us/148287 Bulletin de sécurité Apple 148286 du 18 août 2026 https://support.apple.com/en-us/148286 Référence CVE CVE-2026-28947 https://www.cve.org/CVERecord?id=CVE-2026-28947 Référence CVE CVE-2026-28958 https://www.cve.org/CVERecord?id=CVE-2026-28958 Référence CVE CVE-2026-28973 https://www.cve.org/CVERecord?id=CVE-2026-28973 Référence CVE CVE-2026-28979 https://www.cve.org/CVERecord?id=CVE-2026-28979 Référence CVE CVE-2026-28984 https://www.cve.org/CVERecord?id=CVE-2026-28984 Référence CVE CVE-2026-28990 https://www.cve.org/CVERecord?id=CVE-2026-28990 Référence CVE CVE-2026-28996 https://www.cve.org/CVERecord?id=CVE-2026-28996 Référence CVE CVE-2026-3783 https://www.cve.org/CVERecord?id=CVE-2026-3783 Référence CVE CVE-2026-3784 https://www.cve.org/CVERecord?id=CVE-2026-3784 Référence CVE CVE-2026-39868 https://www.cve.org/CVERecord?id=CVE-2026-39868 Référence CVE CVE-2026-39872 https://www.cve.org/CVERecord?id=CVE-2026-39872 Référence CVE CVE-2026-39877 https://www.cve.org/CVERecord?id=CVE-

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0938Multiples vulnérabilités dans les produits Apple

d?id=CVE-2026-28914 Référence CVE CVE-2026-28926 https://www.cve.org/CVERecord?id=CVE-2026-28926 Référence CVE CVE-2026-28928 https://www.cve.org/CVERecord?id=CVE-2026-28928 Référence CVE CVE-2026-28931 https://www.cve.org/CVERecord?id=CVE-2026-28931 Référence CVE CVE-2026-28932 https://www.cve.org/CVERecord?id=CVE-2026-28932 Référence CVE CVE-2026-28936 https://www.cve.org/CVERecord?id=CVE-2026-28936 Référence CVE CVE-2026-28945 https://www.cve.org/CVERecord?id=CVE-2026-28945 Référence CVE CVE-2026-28961 https://www.cve.org/CVERecord?id=CVE-2026-28961 Référence CVE CVE-2026-28973 https://www.cve.org/CVERecord?id=CVE-2026-28973 Référence CVE CVE-2026-28979 https://www.cve.org/CVERecord?id=CVE-2026-28979 Référence CVE CVE-2026-28981 https://www.cve.org/CVERecord?id=CVE-2026-28981 Référence CVE CVE-2026-28982 https://www.cve.org/CVERecord?id=CVE-2026-28982 Référence CVE CVE-2026-28983 https://www.cve.org/CVERecord?id=CVE-2026-28983 Référence CVE CVE-2026-3783 https://www.cve.org/CVERecord?id=CVE-2026-3783 Référence CVE CVE-2026-3784 https://www.cve.org/CVERecord?id=CVE-2026-3784 Référence CVE CVE-2026-39868 https://www.cve.org/CVERecord?id=CVE-2026-39868 Référence CVE CVE-2026-39872 https://www.cve.org/CVERecord?id=CVE-2026-39872 Référence CVE CVE-2026-39873 https://www.cve.org/CVERecord?id=CVE-

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0818Multiples vulnérabilités dans les produits Apple

découvertes dans les produits Apple. Certaines d'entre elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données, une atteinte à l'intégrité des données et un contournement de la politique de sécurité. Solutions Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation). Documentation Bulletin de sécurité Apple 127594 du 29 juin 2026 https://support.apple.com/en-us/127594 Bulletin de sécurité Apple 127595 du 29 juin 2026 https://support.apple.com/en-us/127595 Bulletin de sécurité Apple 127685 du 29 juin 2026 https://support.apple.com/en-us/127685 Référence CVE CVE-2026-28979 https://www.cve.org/CVERecord?id=CVE-2026-28979 Référence CVE CVE-2026-39868 https://www.cve.org/CVERecord?id=CVE-2026-39868 Référence CVE CVE-2026-39872 https://www.cve.org/CVERecord?id=CVE-2026-39872 Référence CVE CVE-2026-43663 https://www.cve.org/CVERecord?id=CVE-2026-43663 Référence CVE CVE-2026-43676 https://www.cve.org/CVERecord?id=CVE-2026-43676 Référence CVE CVE-2026-43699 https://www.cve.org/CVERecord?id=CVE-2026-43699 Référence CVE CVE-2026-43700 https://www.cve.org/CVERecord?id=CVE-2026-43700 Référence CVE CVE-2026-43701 https://www.cve.org/CVERecord?id=CVE-2026-43701 Référence CVE CVE-2026-43703 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-021737アップルのiPadOS等の複数製品における複数の脆弱性

範囲外アクセスの問題は、境界チェックの改善によって対処されました。この問題はSafari 26.5.2、iOS 26.5.2およびiPadOS 26.5.2、macOS Tahoe 26.5.2で修正されています。悪意のある細工が施されたウェブコンテンツを処理すると、予期しないプロセスクラッシュが引き起こされる可能性があります。

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0319Kwetsbaarheden verholpen in Apple iOS en iPadOS

An out-of-bounds access vulnerability in multiple Apple OS versions was fixed by improved bounds checking to prevent unexpected process crashes triggered by maliciously crafted web content.

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0215Kwetsbaarheden verholpen in Apple iOS en iPadOS

An out-of-bounds access vulnerability causing potential process crashes when processing malicious web content was fixed with improved bounds checking in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2.

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0214Kwetsbaarheden verholpen in Apple MacOS

An out-of-bounds access vulnerability causing potential process crashes when processing malicious web content was fixed with improved bounds checking in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2.

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
  • Safari: < 26.5.2
  • iOS and iPadOS: < 18.7.10, < 26.5.2
  • macOS: < 26.5.2
  • tvOS: < 26.6
  • visionOS: < 26.6
  • watchOS: < 26.6
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 29 Jun 2026 · Last source change 17 Aug 2026, 21:29 UTC · CWE-125 · Out-of-bounds Read

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-2026-40187
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 ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    < 26.5.2; < 26.6 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    < 26.5.2; < 18.7.10; < 26.6 · 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
ENISA EUVD · EUVD-2026-40187↗CVE authority or vendor reference↗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-2026-28979 · cve.blacktree.nl