Out-of-bounds Read in Mumble

CVE-2025-71264

Mumble before 1.6.870 is prone to an out-of-bounds array access, which may result in denial of service (client crash).

Vulnerability class: Buffer Overflow

EPSS: 0.001 (17.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Mumble — versions 0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

Frequently asked questions

What is CVE-2025-71264?: CVE-2025-71264 is a low-severity vulnerability in Mumble, classified under Out-of-bounds Read. CVSS score: 3.7/10. Published 2026-03-16.
How severe is CVE-2025-71264?: Low severity. CVSS v3 base score is 3.7 out of 10.