PatchTheCVECVE-2025-71264: Mumble before 1.6.870 is prone to an out-of-bounds array access, which may result in denial of service (client
CVE-2025-71264 is a low-severity flaw (CVSS 3.7) affecting mumble. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Mumble before 1.6.870 is prone to an out-of-bounds array access, which may result in denial of service (client crash).
Why this priority
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 3.7 (Low) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 79%) |
| CISA exploited list | No |
| Weakness | CWE-125 |
| Published | 2026-03-16 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-71264?
mumble: upgrade to 1.6.870. Exact commands for each OS are on this page.
Is CVE-2025-71264 being exploited?
CVE-2025-71264 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-71264 affect?
CVE-2025-71264 affects mumble. Severity is low (CVSS 3.7). Mumble before 1.6.870 is prone to an out-of-bounds array access, which may result in denial of service (client crash).
How urgent is CVE-2025-71264?
Priority 23/100. Remotely exploitable, no login, no user action