Skip to main content

Apple iOS EUVDEUVD-2026-49441

| CVE-2026-64716 HIGH
Buffer Overflow (CWE-119)
2026-07-27 apple GHSA-6wwc-jxw9-5qhh
7.8
CVSS 3.1 · Vendor: apple
View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Craft malicious image file
  2. Delivery
    Deliver via message/email/web
  3. Exploit
    Victim processes image
  4. Execution
    Trigger out-of-bounds buffer overflow
  5. Impact
    Corrupt process memory

Vulnerability Assessment

Weakness
CWE
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires the victim to process a maliciously crafted image with an affected Apple OS (any pre-26.6 / pre-15.7.8 / pre-14.8.8 build) - i.e., the image must be delivered to and rendered/parsed by the target (UI:R), so there is no remote unauthenticated auto-exploitation of a listening service. No authentication or special privileges are needed on the attacker side (PR:N), and no non-default configuration is required since image handling is a core, always-available OS function. The primary limiting factor is the need for user interaction to open or preview the image and the absence of privilege escalation in a single step (scope unchanged, S:U); it affects all listed Apple platforms in vulnerable versions rather than a niche configuration.

Impact

Signals are consistent and point to a real but not urgent priority. The CVSS 3.1 vector (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, base 7.8) reflects that exploitation requires the victim to process a malicious file (UI:R) rather than a purely remote drive-by, and the vector is scored local (AV:L) because the malicious image must be delivered to and opened by the target. EPSS is low (0.17%, 6th percentile) and SSVC exploitation is 'none' with automatable 'no', so there is no evidence of mass exploitation; however SSVC technical impact is 'total,' matching the C:H/I:H/A:H impact metrics. Note a tension worth verifying: image-parsing bugs are frequently reachable via network-delivered content (messaging, web, email attachments), so while CVSS uses AV:L, real-world delivery can be remote-to-local - defenders should not read AV:L as 'requires physical/local presence.' No KEV listing and no POC lower immediate urgency, but the total technical impact and Apple's own reporting warrant timely patching.

Exploit ScenarioDerived

An attacker crafts a malformed image and delivers it to a victim via email attachment, a messaging app, or a web page; when the victim's device processes the image for display or preview, the malformed structure overflows a buffer and corrupts process memory. No public POC or exploit code has been identified, and successful exploitation requires the user to receive and process the crafted image (UI:R).

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Jul 29, 2026

Memory corruption in Apple's cross-platform image-processing stack allows a maliciously crafted image to corrupt process memory across iOS/iPadOS, macOS, tvOS, visionOS, and watchOS. Apple self-reported and patched the flaw (fixed in iOS/iPadOS 26.6, macOS Sequoia 15.7.8, Sonoma 14.8.8, Tahoe 26.6, and the 26.6 releases of tvOS/visionOS/watchOS). No public exploit identified at time of analysis; EPSS is low (0.17%, 6th percentile) and CISA SSVC records exploitation status as none, though the technical impact is rated total.

RemediationAI

Vendor-released patch: update to iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, or watchOS 26.6 as applicable to each device, referencing the platform-specific advisories at https://support.apple.com/en-us/128066 through https://support.apple.com/en-us/128072. There is no vendor-documented configuration workaround since the flaw is in core image handling; as an interim compensating control, avoid opening images from untrusted sources and restrict automatic image rendering/previews where feasible (e.g., disabling automatic media loading in messaging/mail clients), accepting the usability trade-off of manual media handling. Deploy the updates through MDM for managed fleets to close the window quickly given the total technical impact.

Affected VersionsENISA

macOS 0 <14.8.8
macOS 0 <26.6
tvOS 0 <26.6
macOS 0 <15.7.8
iOS and iPadOS 0 <26.6
visionOS 0 <26.6
watchOS 0 <26.6

Affected Packages

euvd ios_and_ipados fix: 26.6
euvd macos fix: 14.8.8, 15.7.8, 26.6
euvd tvos fix: 26.6
euvd visionos fix: 26.6
euvd watchos fix: 26.6

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 5 packages in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The flaw is a CWE-119 improper restriction of operations within memory bounds (buffer overflow), triggered during image decoding/parsing. The affected component is Apple's shared image-handling code (broadly the ImageIO/CoreGraphics family that underpins all listed OSes), which is why a single CVE spans cpe:2.3:a:apple:ios_and_ipados, :macos, :tvos, :visionos, and :watchos. Apple's advisory language ('addressed with improved memory handling') indicates the root cause was insufficient bounds validation when handling attacker-controlled image structure, allowing out-of-bounds read/write that corrupts adjacent process memory - a classic precursor to memory-safety exploitation.

Know when Tvos gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

Vendor (apple) PRIMARY 7.8 HIGH
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vuln.today AI 7.8 HIGH

Malicious image must be opened by the victim, so AV:L and UI:R with PR:N; memory corruption yields high C/I/A and unchanged scope.

3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (apple).

CVSS VectorVendor: apple

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Patch available
Jul 27, 2026 - 21:17 EUVD
CVE Published
Jul 27, 2026 - 20:14 cve.org
HIGH 7.8
CVE Published
Jul 27, 2026 - 20:14 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing a maliciously crafted image may corrupt process memory.

Threat Intelligence Overview

EPSS Score
0.2%
Top 94% exploitable
Prevalence
Ubiquitous
Apple OSes run on billions of iPhones, iPads, Macs, and wearables worldwide
Social Media
1
Sightings
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
High
Technical Impact
Total

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

More in Tvos

View all
CVE-2022-2294 HIGH
8.8 Jul 28

Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit

CVE-2017-13861 HIGH POC
7.8 Dec 25

An issue was discovered in certain Apple products. Rated high severity (CVSS 7.8), this vulnerability is no authenticati

CVE-2016-0801 CRITICAL POC
9.8 Feb 07

The Broadcom Wi-Fi driver in the kernel in Android 4.x before 4.4.4, 5.x before 5.1.1 LMY49G, and 6.x before 2016-02-01

CVE-2025-31277 HIGH POC
8.8 Jul 30

WebKit memory corruption in Safari 18.6 and multiple Apple platforms allows remote code execution when processing malici

CVE-2016-4622 HIGH
8.8 Jul 22

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to execute arbitrar

CVE-2016-4669 HIGH POC
7.8 Feb 20

An issue was discovered in certain Apple products. Rated high severity (CVSS 7.8), this vulnerability is low attack comp

CVE-2025-43510 HIGH POC
7.8 Dec 12

Apple kernel lock state checking flaw allows a malicious application to cause unexpected changes in memory shared betwee

CVE-2017-2370 HIGH POC
7.8 Feb 20

An issue was discovered in certain Apple products. Rated high severity (CVSS 7.8), this vulnerability is no authenticati

CVE-2025-43520 MEDIUM POC
5.5 Dec 12

Apple kernel memory corruption in multiple operating systems allows a malicious application to cause unexpected system t

CVE-2025-14174 HIGH
8.8

Out-of-bounds write (CWE-787) in QtWebEngine before 6.10.1-r2 on Alpine Linux, and in other Chromium-based engines such

CVE-2025-43529 HIGH
8.8 Dec 17

WebKit arbitrary code execution via use-after-free memory corruption affects Safari 26.2, iOS/iPadOS 18.7.3 through 26.2

CVE-2017-11120 CRITICAL POC
9.8 Sep 28

On Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips, an attacker can craft a malformed RRM neighbor repo

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy