Cyber Resilience

CVE-2025-43462

DoS in Apple Ipados ≤ 26.1

Published
04 November 2025
Modified
02 April 2026
Patch / advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0058 44th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2025-43462 is a high-severity Uncontrolled Resource Consumption (CWE-400) vulnerability in Apple Ipados. Its CVSS base score is 7.5 (High).

Operationally, ranked at the 44th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SC-39 (Process Isolation) and SI-16 (Memory Protection) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. An app may be able to cause unexpected system termination or corrupt kernel…

more

memory.

CWE(s)

Related Threats

CVEs Like This One

CVE-2024-44176Same product: Apple Ipados
CVE-2025-24126Same product: Apple Ipados
CVE-2024-27800Same product: Apple Ipados
CVE-2025-31226Same product: Apple Ipados
CVE-2026-20650Same product: Apple Ipados
CVE-2024-44169Same product: Apple Ipados
CVE-2025-31251Same product: Apple Ipados
CVE-2024-44183Same product: Apple Ipados
CVE-2024-54658Same product: Apple Ipados
CVE-2025-31245Same product: Apple Ipados

Affected Assets

apple
ipados
≤ 26.1
apple
iphone os
≤ 26.1
apple
tvos
≤ 26.1
apple
visionos
≤ 26.1
apple
watchos
≤ 26.1

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-16 Memory Protection
  • SC-39 Process Isolation
  • SC-6 Resource Availability
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)

Mitigating Controls (NIST 800-53 r5) AI

prevent

Directly requires memory protection safeguards that would block the uncontrolled memory handling flaw allowing an app to corrupt kernel memory or terminate the system.

prevent

Enforces process isolation boundaries so a user-space app cannot affect or corrupt kernel memory or cause system-wide termination.

prevent

Limits effects of resource-exhaustion attacks (CWE-400) that produce the unexpected system termination described in the CVE.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.IR-04 mostly match
prevents

Explicitly requires monitoring and maintaining resource capacity, directly addressing uncontrolled consumption to preserve availability.

DE.CM-09 partial match
prevents

Continuous monitoring of computing resources can detect resource exhaustion but does not itself enforce allocation limits.

PR.IR-03 partial match
prevents

Resilience mechanisms such as avoiding single points of failure indirectly reduce impact of resource exhaustion.

PR.PS-01 partial match
prevents

Hardened configuration baselines can include resource quotas and limits that constrain consumption.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

detects

Resource-utilization monitoring and alerting on bottlenecks or overloads limits the impact of denial-of-service or resource-exhaustion attacks.

prevents

By continuously monitoring utilization, stress-testing peak loads, and maintaining documented plans to scale or throttle resources, the control directly limits an attacker’s ability to drive a system into uncontrolled resource exhaustion.

detects

Pre-agreed severity-based prioritization and resource allocation during incident triage reduce the likelihood that an attacker-induced resource exhaustion will overwhelm the organization before corrective action is taken.

mitigates

Business-continuity plans that include resource-management controls reduce the likelihood that an attacker can trigger uncontrolled resource consumption by forcing the system into a degraded or fallback state.

mitigates

Defining RTOs and capacity requirements for ICT services during business-impact analysis forces organizations to provision sufficient resources and throttling mechanisms, reducing the likelihood that an attacker can induce denial-of-service through uncontrolled resource consumption.

detects

Early notification of anomalous resource consumption or system malfunctions enables throttling or isolation before availability is lost.

References