What is CVE-2024-21374?

CVE-2024-21374 is a medium-severity vulnerability in Microsoft Teams For Android, classified under Improper Input Validation. CVSS score: 5.0/10. Published 2024-02-13.

How severe is CVE-2024-21374?

Medium severity. CVSS v3 base score is 5.0 out of 10.

Is CVE-2024-21374 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Microsoft Teams For Android

CVE-2024-21374

Microsoft Teams for Android Information Disclosure Vulnerability

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2024-02-13 · last modified 2026-08-10.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.010 (61.6th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 62nd percentile — 61.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Microsoft Teams For Android — versions 1.0.0
Microsoft Teams

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21374 (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2024-21374?: CVE-2024-21374 is a medium-severity vulnerability in Microsoft Teams For Android, classified under Improper Input Validation. CVSS score: 5.0/10. Published 2024-02-13.
How severe is CVE-2024-21374?: Medium severity. CVSS v3 base score is 5.0 out of 10.
Is CVE-2024-21374 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.