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TI-2024-27489 Aliases CVE-2024-41138GHSA-fp2v-f9gm-2jc9

Improper signature verification in Microsoft Teams

Priority MEDIUM 45CWE-347Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-347.

Summary

A library injection vulnerability exists in the com.microsoft.teams2.modulehost.app helper app of Microsoft Teams (work or school) 24046.2813.2770.1094 for macOS. A specially crafted library can leverage Teams's access privileges, leading to a permission bypass. A malicious application could inject a library and start the program to trigger this vulnerability and then make use of the vulnerable application's permissions.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00906 60th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftTeams (work or school)24046.2812.2722.8193 for macOS—No fix listedCNA
  • Teams (work or school) VendorMicrosoft Affected 24046.2812.2722.8193 for macOS Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:teams:24046.2813.2770.1094:*:*:*:*:macos:*:*24046.2813.2770.1094VulnerableMicrosoft
  • cpe:2.3:a:microsoft:teams:24046.2813.2770.1094:*:*:*:*:macos:*:* Versions 24046.2813.2770.1094 Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-41138
  2. 2026-10-03 Alias added: GHSA-fp2v-f9gm-2jc9

References

Exploit 2

  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2024-28020 Improper signature verification in Microsoft Teams CVSS 3.1CRITICAL 9.8
  • TI-2024-25478 Microsoft Teams for iOS Spoofing Vulnerability CVSS 3.1MEDIUM 6.5
  • TI-2026-46812 Microsoft Teams Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2026-46862 Microsoft Teams Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-44955 Microsoft Teams Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 9.6
See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences