Vulnerability · Published Mar 16, 2026 · Assigned by mitre
CVE-2025-71264
Low 3.7
In plain English
A low-severity out-of-bounds read in Mumble from Mumble. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)3.7Low
Exploit odds (30 days)0.3%top 78.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Mumble before 1.6.870 is prone to an out-of-bounds array access, which may result in denial of service (client crash).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | mumble | no fix listed | DEBIAN-CVE-2025-71264 |
| Debian:13 | mumble | 1.5.735-5+deb13u1 | DEBIAN-CVE-2025-71264 |
| Debian:14 | mumble | 1.5.735-7 | DEBIAN-CVE-2025-71264 |
| Ubuntu:22.04:LTS | mumble | no fix listed | UBUNTU-CVE-2025-71264 |
| Ubuntu:24.04:LTS | mumble | no fix listed | UBUNTU-CVE-2025-71264 |
| Ubuntu:25.10 | mumble | no fix listed | UBUNTU-CVE-2025-71264 |
| Ubuntu:26.04:LTS | mumble | no fix listed | UBUNTU-CVE-2025-71264 |
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L