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iOS and iPadOS EUVDEUVD-2026-60480

| CVE-2026-65349 MEDIUM
Out-of-bounds Read (CWE-125)
2026-08-17 apple GHSA-7qm3-9644-rgpr
6.6
CVSS 3.1 · Vendor: apple
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Attack ChainAIDerived

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

  1. Access
    Distribute malicious app to target device
  2. Delivery
    User installs and interacts with app
  3. Exploit
    App supplies crafted input to kernel component
  4. Execution
    Out-of-bounds read triggered in kernel
  5. Impact
    Kernel memory disclosed or system crash forced

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, read limits
MITRE ATT&CK

1 technique across 1 tactic: Collection

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

Exploitation Conditions

Exploitation requires a malicious or attacker-controlled app to be installed and executed on the target device (local attack vector, AV:L; low privileges, PR:L per CVSS). Additionally, some form of user interaction is required to trigger the vulnerable code path (UI:R per CVSS vector) - the app cannot silently exploit the flaw without a user-initiated action. Exploitation is strictly local: no network-based or remote unauthenticated attack path exists. Limiting factors include: the target device must be running iOS/iPadOS prior to 26.6.1 or macOS Tahoe prior to 26.6.2; the attacker must achieve app execution on the device (e.g., via social engineering, enterprise certificate abuse, or App Store distribution); and the specific user interaction required is not elaborated in available documentation, representing an additional barrier to reliable exploitation.

Impact

The CVSS 3.1 score of 6.6 (Medium) with vector AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H reflects a constrained but meaningful attack surface: exploitation is local only, requires a low-privileged app context, and depends on some form of user interaction. The high confidentiality impact (C:H) from potential kernel memory reads is notable - kernel pointer leaks can serve as stepping stones for privilege escalation chains - but the integrity metric is N, ruling out direct write exploitation from this flaw alone. EPSS at 0.15% (5th percentile) corroborates the low immediate exploitation likelihood, and there is no CISA KEV entry or known public POC. The UI:R requirement is particularly limiting: it implies the malicious app cannot trigger the flaw autonomously without some user-driven event. Overall, this is a real but non-critical priority for most organizations - patch promptly as part of normal Apple update cycles, but this does not warrant emergency out-of-band response absent chaining evidence.

Exploit ScenarioDerived

An attacker distributes a malicious app - potentially disguised as a legitimate utility - that, once installed and triggered via a user action (e.g., opening a file or performing an in-app operation), supplies crafted input to a vulnerable kernel-adjacent component. The out-of-bounds read either leaks kernel memory addresses useful for a follow-on privilege escalation exploit, or crashes the kernel entirely, causing a device reboot. No public POC has been identified at time of analysis, so this scenario is currently theoretical based on CVSS metadata.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Aug 18, 2026

Out-of-bounds read in Apple iOS, iPadOS, and macOS kernel components allows a low-privileged local app to trigger unexpected system termination or disclose sensitive kernel memory. Affected platforms include iOS and iPadOS prior to 26.6.1 and macOS Tahoe prior to 26.6.2, with Apple releasing emergency point releases to address the flaw. No public exploit or active exploitation has been identified (not in CISA KEV), and EPSS sits at the 5th percentile (0.15%), indicating very low likelihood of observed exploitation at this time.

RemediationAI

The primary remediation is to apply Apple's vendor-released patches: update iOS and iPadOS to version 26.6.1 or later, and macOS Tahoe to version 26.6.2 or later, via Settings > General > Software Update (iOS/iPadOS) or System Settings > General > Software Update (macOS). Advisory references are https://support.apple.com/en-us/148281 and https://support.apple.com/en-us/148282. No specific workaround is documented by Apple. As a compensating control where patching is delayed, restricting installation of untrusted or third-party apps via MDM policy (e.g., enforcing App Store-only sources, disabling sideloading) reduces the attack surface, since exploitation requires a malicious app running on the device. Note that this control does not eliminate risk from compromised App Store apps and may affect user or enterprise workflows.

Affected VersionsENISA

macOS 0 <26.6.2
iOS and iPadOS 0 <26.6.1

Affected Packages

euvd ios_and_ipados fix: 26.6.1
euvd macos fix: 26.6.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 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 vulnerability is classified as CWE-125 (Out-of-Bounds Read), a memory safety flaw occurring when a program reads data beyond the allocated buffer boundary. Apple's advisory states the root cause was insufficient input validation - a kernel or privileged system component failed to adequately bound-check attacker-influenced input supplied via an app. Affected CPEs are cpe:2.3:a:apple:ios_and_ipados:*:*:*:*:*:*:*:* (versions prior to 26.6.1) and cpe:2.3:a:apple:macos:*:*:*:*:*:*:*:* (macOS Tahoe, versions prior to 26.6.2). Despite the 'Buffer Overflow' tag present in intelligence feeds, the confirmed CWE-125 indicates a read primitive rather than a write, which limits direct code execution potential but enables memory disclosure useful for bypassing kernel mitigations such as KASLR.

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Severity by source

Vendor (apple) PRIMARY 6.6 MEDIUM
AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H
vuln.today AI 6.6 MEDIUM

Local app execution with low privileges triggers the read; no integrity impact from a read-only primitive; C:H and A:H reflect kernel memory disclosure and system termination respectively.

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

Primary rating from Vendor (apple).

CVSS VectorVendor: apple

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

Lifecycle Timeline

4
CVSS changed
Aug 18, 2026 - 14:22 NVD
6.6 (MEDIUM)
Patch available
Aug 17, 2026 - 22:03 EUVD
CVE Published
Aug 17, 2026 - 21:29 cve.org
UNKNOWN (no severity yet)
CVE Published
Aug 17, 2026 - 21:29 cve.org
MEDIUM 6.6

DescriptionCVE.org

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. An app may be able to cause unexpected system termination or read kernel memory.

Threat Intelligence Overview

EPSS Score
0.2%
Top 95% exploitable
Prevalence
High
Apple iOS, iPadOS, and macOS deployed across billions of consumer and enterprise devices globally
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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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
Partial

Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +33
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.

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