CVE-2024-41138Public exploit

Permission bypass via unsigned library loading

Published Dec 18, 2024 · Updated Dec 20, 2024

Library injection in Microsoft Teams 24046.2812.2722.8193 for macOS allows local users to access data and device sensors through Teams. The com.microsoft.teams2.modulehost.app helper loads libraries through relative @rpath entries while its disable-library-validation entitlement accepts unsigned code. A local malicious application can copy and launch the helper from a controlled path, inheriting existing Teams permissions to take photos, record audio, or exfiltrate data.

CVSS severity7.1
High
EPSS probability0.90%
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 24046.2812.2722.8193 for macOS allows local users to access data and device sensors through Teams. The com.microsoft.teams2.modulehost.app helper loads libraries through relative @rpath entries while its disable-library-validation entitlement accepts unsigned code. A local malicious application can copy and launch the helper from a controlled path, inheriting existing Teams permissions to take photos, record audio, or exfiltrate data.

The record

CVE
CVE-2024-41138
Published
Dec 18, 2024
Updated
Dec 20, 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 20, 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

7.1Cisco Talos CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
9.8NIST NVDCVSS: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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

Public exploit references

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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