CVE-2024-41145

Permission bypass via unsigned WebView library loading

Published Dec 18, 2024 · Updated Dec 28, 2024

Library injection in Microsoft Teams for macOS 24046.2812.2722.8193 allows local users to inherit Teams-granted permissions. WebView.app enables com.apple.security.cs.disable-library-validation and passes a framework path derived from its executable location to dlopen, accepting an unsigned replacement library. A malicious local application must place the crafted framework and launch the helper; injected code then inherits microphone or other permissions granted to Teams.

CVSS severity9.8
Critical
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Library injection in Microsoft Teams for macOS 24046.2812.2722.8193 allows local users to inherit Teams-granted permissions. WebView.app enables com.apple.security.cs.disable-library-validation and passes a framework path derived from its executable location to dlopen, accepting an unsigned replacement library. A malicious local application must place the crafted framework and launch the helper; injected code then inherits microphone or other permissions granted to Teams.

The record

CVE
CVE-2024-41145
Published
Dec 18, 2024
Updated
Dec 28, 2024
Vendor
Microsoft
Product
Microsoft Teams
Classifications
CWE-347, T1574.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 28, 2024Record 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=24046.2812.2722.8193 for macOS

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Microsoft Teamsversion=24046.2812.2722.8193 for macOS

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.1Cisco TalosCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
T1574.004Dylib Hijacking

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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