CVE-2025-43295

Local app-triggered denial of service

Published Sep 15, 2025 · Updated Sep 15, 2025

Denial of service in libc in Apple iOS and iPadOS before 18.7 and macOS before 14.8, 15.7, or 26 allows local users to interrupt service. Apple has not disclosed the libc entry point, the input requiring validation, or whether the failure crashes an app, process, or operating system. Execution of an attacker-controlled app and user interaction are required, and the documented consequence is limited to denial of service.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in libc in Apple iOS and iPadOS before 18.7 and macOS before 14.8, 15.7, or 26 allows local users to interrupt service. Apple has not disclosed the libc entry point, the input requiring validation, or whether the failure crashes an app, process, or operating system. Execution of an attacker-controlled app and user interaction are required, and the documented consequence is limited to denial of service.

The record

CVE
CVE-2025-43295
Published
Sep 15, 2025
Updated
Sep 15, 2025
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-400
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <18.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=unspecified <18.7
Apple · macOSversion=unspecified <14.8; version=unspecified <15.7; version=unspecified <26

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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