CVE-2025-20630

Name: CVE-2025-20630
Creator: NVD / NIST
Published: 2025-01-16T19:15:30.11+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.59%

Last modified Jun 17, 2026

CVE-2025-20630 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Mattermost Mobile versions <=2.22.0 fail to properly handle posts with attachments containing fields that cannot be cast to a String, which allows an attacker to cause the mobile to crash via creating and sending such a post to a channel.. EPSS estimates a 0.59% chance of exploitation in the next 30 days.

Description

Mattermost Mobile versions <=2.22.0 fail to properly handle posts with attachments containing fields that cannot be cast to a String, which allows an attacker to cause the mobile to crash via creating and sending such a post to a channel.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.59%

43.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1287

Affected Software

Vendor	Product	Versions
Mattermost	Mattermost Mobile	< 2.23.0

References

https://mattermost.com/security-updatesVendor Advisory

Timeline

Published: Jan 16, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-20630?

How severe is CVE-2025-20630?

CVE-2025-20630 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2025-20630?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-20630?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST