How severe is CVE-2025-1558?

CVE-2025-1558 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-1558 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-1558?

CVE-2025-1558 affects Mattermost Mattermost Mobile. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-1558?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-1558 have an EU (EUVD) identifier?

Yes. CVE-2025-1558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7906.

When was CVE-2025-1558 published?

CVE-2025-1558 was published on 2025-03-24 and last updated on 2026-06-17.

CVE-2025-1558

CVE-2025-1558 is a medium-severity vulnerability in Mattermost Mattermost Mobile with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1287.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-7906
Weakness: CWE-1287
Affected product: Mattermost Mattermost Mobile
Published: 2025-03-24
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-1558?: 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.
How severe is CVE-2025-1558?: CVE-2025-1558 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-1558 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-1558?: CVE-2025-1558 affects Mattermost Mattermost Mobile. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-1558?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-1558 have an EU (EUVD) identifier?: Yes. CVE-2025-1558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7906.
When was CVE-2025-1558 published?: CVE-2025-1558 was published on 2025-03-24 and last updated on 2026-06-17.

References

https://mattermost.com/security-updates

Affected products (1)

cpe:2.3:a:mattermost:mattermost_mobile:*:*:*:*:*:*:*:*

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