What is the CVSS score of EUVD-2026-29271?

EUVD-2026-29271 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Apple operating systems are affected by EUVD-2026-29271?

CVE-2026-28969 is a high-severity use-after-free vulnerability affecting Apple's ecosystem (iOS, iPadOS, macOS, tvOS, visionOS, watchOS) that could allow unauthenticated network-based attackers to…. A patch is available.

How to fix or mitigate EUVD-2026-29271?

Within 24 hours: Inventory all Apple devices running affected versions (iOS/iPadOS <18.7.9, macOS Sequoia <15.7.7, Sonoma <14.8.7, tvOS <26.5, visionOS <26.5, watchOS <26.5). Within 7 days: Deploy vendor patches to non-critical devices and test compatibility in staging environments. Within 30 days: Complete patching of all affected Apple devices, prioritizing systems handling sensitive data and those exposed to untrusted networks.

Apple operating systems EUVD-2026-29271

| CVE-2026-28969 HIGH

Use After Free (CWE-416)

2026-05-11 apple

GHSA-5vrc-4fj4-9cmh

Denial Of Service Apple Use After Free Memory Corruption

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

May 12, 2026 - 14:27 vuln.today

CVSS changed

May 12, 2026 - 14:22 NVD

7.5 (HIGH)

Patch available

May 11, 2026 - 22:18 EUVD

CVE Published

May 11, 2026 - 20:07 nvd

UNKNOWN (no severity yet)

CVE Published

May 11, 2026 - 20:07 nvd

HIGH 7.5

DescriptionCVE.org

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. An app may be able to cause unexpected system termination.

AnalysisAI

Use-after-free memory corruption in Apple operating systems allows high confidentiality impact through unexpected system termination. Affects iOS/iPadOS versions before 18.7.9 and 26.5, macOS Sequoia before 15.7.7, macOS Sonoma before 14.8.7, macOS Tahoe before 26.5, tvOS before 26.5, visionOS before 26.5, and watchOS before 26.5. Vendor-released patches are available across all affected platforms. EPSS score of 0.02% (7th percentile) indicates low observed exploitation probability in the wild, and no public exploit identified at time of analysis. CVSS vector indicates network-reachable attack surface with no authentication required, though the description states only 'an app' can trigger the condition, suggesting conflicting attack vector classification.

Technical ContextAI

This vulnerability involves a use-after-free condition (CWE-416), a memory safety issue where code attempts to access memory after it has been freed. In Apple's ecosystem, this typically occurs in core system frameworks or libraries shared across iOS, macOS, tvOS, visionOS, and watchOS. The CPE data confirms the vulnerability spans all major Apple operating systems, suggesting the flaw exists in a common component or framework used across these platforms. Use-after-free vulnerabilities arise from improper object lifecycle management, often in reference-counted memory systems like Objective-C's ARC or manual retain/release patterns. The simultaneous patching across iOS versions 18.x and 26.x (likely representing different major releases) indicates the vulnerable code has existed across multiple OS generations. Apple's fix involves improved memory management, which typically means adding proper object lifetime tracking, implementing defensive null checks, or restructuring code to avoid dangling pointers.

RemediationAI

Apply vendor-released security updates immediately: upgrade iOS and iPadOS to version 18.7.9 or 26.5 (depending on device compatibility), macOS Sequoia to 15.7.7, macOS Sonoma to 14.8.7, macOS Tahoe to 26.5, tvOS to 26.5, visionOS to 26.5, and watchOS to 26.5. Patches are available through standard Apple software update mechanisms (Settings > General > Software Update on iOS/iPadOS, System Settings > General > Software Update on macOS). Detailed security content information is available at https://support.apple.com/en-us/127110 through 127120. If immediate patching is not possible, restrict installation of untrusted applications to minimize attack surface until updates can be deployed, though this mitigation may not be effective if the network attack vector in the CVSS assessment is accurate. Organizations using Mobile Device Management should prioritize pushing these updates to managed devices. No known workarounds exist that fully mitigate use-after-free memory corruption vulnerabilities without applying the vendor patch.