Is CVE-2025-21083 actively exploited?

CVE-2025-21083 has no public evidence of in-the-wild exploitation as of 2025-09-25.

What is the CVSS score for CVE-2025-21083?

CVE-2025-21083 has a CVSS score of 6.5 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2025-21083?

Patch guidance is available from mattermost security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-21083.

Which products are affected by CVE-2025-21083?

1 product: mattermost mattermost mobile.

CVE-2025-21083 - remediation guidance & executive summary

Description

Mattermost Mobile Apps versions <=2.22.0 fail to properly validate post props which allows a malicious authenticated user to cause a crash via a malicious post.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-1287

Metadata

Primary Vendor: MATTERMOST
Published: 1/15/2025
Last Modified: 9/25/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

mattermost : mattermost_mobile

Remediation Guidance

Executive Summary

Cite this page

CVE-2025-21083. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2025-21083

View on NIST NVD

CVE-2025-21083 vulnerability