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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mumble | Mumble | < 1.6.870 | 1.6.870 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | mumble | 1.5.735-7 | — |
| Debian 13 | mumble | 1.5.735-5+deb13u1 | — |
| Debian 12 | mumble | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | mumble | No fix yet | — |
| Ubuntu 25.10 | mumble | No fix yet | — |
| Ubuntu 24.04 LTS | mumble | No fix yet | — |
| Ubuntu 22.04 LTS | mumble | No fix yet | — |
| Ubuntu 20.04 LTS | mumble | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | mumble | No fix yet | — |
| Ubuntu Pro 16.04 LTS | mumble | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | mumble | 1.5.857-2.1 | openSUSE-SU-2026:10388-1 |
| openSUSE Leap 16.0 | mumble | 1.5.857-bp160.1.1 | openSUSE-SU-2026:20394-1 |
Advisories 2
- openSUSE-SU-2026:20394-1 Security update for mumble SUSE / openSUSE Security Updates · Mar 26, 2026
- openSUSE-SU-2026:10388-1 mumble-1.5.857-2.1 on GA media SUSE / openSUSE Security Updates · Mar 19, 2026