CVE-2025-24091

Denial of service via notification entitlement bypass

Published Apr 30, 2025 · Updated Apr 2, 2026

Authentication bypass in Apple Libnotify on iOS before 18.3 and iPadOS before 17.7.3 allows local users to impersonate system notifications. Libnotify accepts sensitive notification requests from apps without enforcing the restricted entitlement required for trusted system notices. Execution of a malicious app is required, and the documented consequence is denial of service rather than data exposure or modification.

CVSS severity5.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Apple Libnotify on iOS before 18.3 and iPadOS before 17.7.3 allows local users to impersonate system notifications. Libnotify accepts sensitive notification requests from apps without enforcing the restricted entitlement required for trusted system notices. Execution of a malicious app is required, and the documented consequence is denial of service rather than data exposure or modification.

The record

CVE
CVE-2025-24091
Published
Apr 30, 2025
Updated
Apr 2, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-290, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 2026Record 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=0 <18.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=0 <18.3
Apple · iPadOSversion=0 <17.7.3

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-290Authentication Bypass by Spoofing
T1499Endpoint Denial of Service

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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