Description
Improper input validation in the WireGuard VPN function may allow a remote attacker with high privileges to inject system commands and execute them with root privileges.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Welotec | TK100 | 0.0.0 – < 3.5.116 | 3.5.116 |
| Welotec | TK500-v2 | 0.0.0 – < 1.0.124 | 1.0.124 |
| Welotec | TK500-v3 | 0.0.0 – < 1.0.123 | 1.0.123 |
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | wireguard | No fix yet | — |
| Ubuntu 26.04 LTS | wireguard | No fix yet | — |
| Ubuntu 24.04 LTS | wireguard | No fix yet | — |
| Ubuntu 22.04 LTS | wireguard | No fix yet | — |
| Ubuntu 20.04 LTS | wireguard | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | wireguard | No fix yet | — |
| Ubuntu 16.04 LTS | wireguard | No fix yet | — |
Advisories 1
- VDE-2026-119 Welotec: Multiple vulnerabilities in TK routers CERT@VDE · Nov 3, 2026