Description
FastNetMon Community Edition through 1.2.9 has a buffer overflow, a different vulnerability than CVE-2026-48686 and CVE-2026-48689.
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 | fastnetmon | 1.2.9-1 | — |
| Debian 13 | fastnetmon | 1.2.9-0+deb13u1 | — |
| Debian 12 | fastnetmon | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | fastnetmon | No fix yet | — |
| Ubuntu 25.10 | fastnetmon | No fix yet | — |
| Ubuntu 18.04 LTS | fastnetmon | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | fastnetmon | No fix yet | — |
| Ubuntu Pro 24.04 LTS | fastnetmon | No fix yet | — |
| Ubuntu Pro 20.04 LTS | fastnetmon | No fix yet | — |