Spoofing attack in Microsoft Outlook for Android - CVE-2025-21259
Published: February 11, 2025
Vulnerability identifier: #VU103829
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-21259
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Microsoft Outlook for Android
Microsoft Outlook for Android
Detailed vulnerability description
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data in Microsoft Outlook. A remote attacker's message can inherit the sender's email address from another message in the UI.
How to mitigate CVE-2025-21259
Install updates from vendor's website.