What’s Vulnerable › Vulnerabilities

CVE-2025-29805: Outlook for Android Information Disclosure Vulnerability

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-08 · updated 2026-08-10
• Weakness: CWE-200

Description

Exposure of sensitive information to an unauthorized actor in Outlook for Android allows an unauthorized attacker to disclose information over a network.

Affected products

• Microsoft Outlook: before 4.2509.0 — fixed in 4.2509.0
• Microsoft Outlook: from 1.0 before 4.2509.0 — fixed in 4.2509.0

How to fix

Upgrade to a fixed version: Microsoft Outlook 4.2509.0; Microsoft Outlook 4.2509.0. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29805

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