CVE-2024-21374

Local disclosure of confidential data

Published Feb 13, 2024 · Updated Aug 10, 2026

Improper input validation in Microsoft Teams for Android before 1.0.0.2024022302 allows local users to disclose confidential data. Microsoft has not published the affected component, the incorrectly validated input, or the disclosure path. Exploitation requires local low-privileged access and user interaction; the published impact is limited to confidentiality, with no integrity or availability loss.

CVSS severity5.0
Medium
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Microsoft Teams for Android before 1.0.0.2024022302 allows local users to disclose confidential data. Microsoft has not published the affected component, the incorrectly validated input, or the disclosure path. Exploitation requires local low-privileged access and user interaction; the published impact is limited to confidentiality, with no integrity or availability loss.

The record

CVE
CVE-2024-21374
Published
Feb 13, 2024
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Microsoft Teams for Android
Classifications
CWE-20
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 13, 2024CVE 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=1.0.0 <1.0.0.2024022302

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Microsoft Teams for Androidversion=1.0.0 <1.0.0.2024022302

Published CVSS scores

5.0Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:R/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation

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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