CVE-2025-43193

Local service interruption via memory mishandling

Published Jul 29, 2025 · Updated Apr 2, 2026

Resource-consumption flaw in SecurityAgent in Apple macOS Ventura, Sonoma, and Sequoia allows local users to interrupt SecurityAgent. SecurityAgent mishandles memory, but Apple has not disclosed the faulty operation or the app-controlled input that reaches it. Running an app on an affected Mac is required; Apple reports denial of service only, without describing whether SecurityAgent hangs or crashes.

CVSS severity9.8
Critical
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource-consumption flaw in SecurityAgent in Apple macOS Ventura, Sonoma, and Sequoia allows local users to interrupt SecurityAgent. SecurityAgent mishandles memory, but Apple has not disclosed the faulty operation or the app-controlled input that reaches it. Running an app on an affected Mac is required; Apple reports denial of service only, without describing whether SecurityAgent hangs or crashes.

The record

CVE
CVE-2025-43193
Published
Jul 29, 2025
Updated
Apr 2, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-400, T1499.004
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jul 29, 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 <13.7.7
  2. Affected versionversion=0 <14.7.7
  3. Affected versionversion=0 <15.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Apple · macOSversion=0 <13.7.7; version=0 <14.7.7; version=0 <15.6

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

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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