CVE-2025-29805Network attack vector

Unauthenticated disclosure of sensitive information

Published Apr 8, 2025 · Updated Aug 10, 2026

Information disclosure in Microsoft Outlook for Android before 4.2509.0 allows remote attackers to read sensitive information over a network. Microsoft has not published the affected component or the operation that exposes the data to untrusted network input. Exploitation requires no authentication or user interaction and is limited to confidentiality loss, with no reported data modification or service interruption.

CVSS severity7.5
High
EPSS probability1.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Microsoft Outlook for Android before 4.2509.0 allows remote attackers to read sensitive information over a network. Microsoft has not published the affected component or the operation that exposes the data to untrusted network input. Exploitation requires no authentication or user interaction and is limited to confidentiality loss, with no reported data modification or service interruption.

The record

CVE
CVE-2025-29805
Published
Apr 8, 2025
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Microsoft Outlook for Android
Classifications
CWE-200
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record 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=1.0 <4.2509.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Outlook for Androidversion=1.0 <4.2509.0

Published CVSS scores

7.5Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

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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