CVE-2023-3615

CVE-2023-3615 is a high-severity vulnerability in Mattermost with a CVSS 3.x base score of 8.1. 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-295.

Key facts

Description

Mattermost iOS app fails to properly validate the server certificate while initializing the TLS connection allowing a network attacker to intercept the WebSockets connection.

Frequently asked questions

What is CVE-2023-3615?
Mattermost iOS app fails to properly validate the server certificate while initializing the TLS connection allowing a network attacker to intercept the WebSockets connection.
How severe is CVE-2023-3615?
CVE-2023-3615 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-3615 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3615?
CVE-2023-3615 affects Mattermost. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3615?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-3615 published?
CVE-2023-3615 was published on 2023-07-17 and last updated on 2026-06-17.

References

Affected products (1)

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