Is CVE-2025-1558 in the CISA KEV catalog?

No. CVE-2025-1558 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-1558?

CVE-2025-1558 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2025-1558?

CVE-2025-1558 has an EPSS score of 0.35% (26th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-1558?

Upgrade mattermost mobile to 2.25.1 or later.

CVE & CISA-KEV Catalog

CVE-2025-1558

MEDIUM

6.5

CVSS v3

NVD

Description

Mattermost Mobile Apps versions <=2.25.0 fail to properly validate GIF images prior to rendering which allows a malicious user to cause the Android application to crash via message containing a maliciously crafted GIF.

CWE-1287Improper Validation of Specified Type of Input

How to fix

Remediation Available

mattermost mobileNVD

Affected:< 2.25.1Fixed in:2.25.1CVE-2025-1558derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.35%probability of exploitation in 30 days

26thpercentile

Low risk: more likely to be exploited than 26% of all known CVEs.

References

Vendor Advisory1

mattermost.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-09-25.