Description
A Denial Of Service vulnerability in MiniUPnP MiniUPnPd through 2.1 exists due to a NULL pointer dereference in GetOutboundPinholeTimeout in upnpsoap.c for rem_port.
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 | miniupnpd | 2.1-6 | — |
| Debian 13 | miniupnpd | 2.1-6 | — |
| Debian 12 | miniupnpd | 2.1-6 | — |
| Debian 8 | miniupnpd | 1.8.20140523-4+deb8u1 | DLA-1811-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | miniupnpd | 1.8.20140523-4.1+deb9u2build0.16.04.1 | USN-4542-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | miniupnpd | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | miniupnpd | 2.2.2-r0 | — |
| Alpine v3.23 | miniupnpd | 2.2.2-r0 | — |
| Alpine v3.22 | miniupnpd | 2.2.2-r0 | — |
| Alpine v3.21 | miniupnpd | 2.2.2-r0 | — |
| Alpine v3.20 | miniupnpd | 2.2.2-r0 | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | miniupnpd | 2.2.2-r0 | — |
| Alpine v3.18 | miniupnpd | 2.2.2-r0 | — |
| Alpine v3.17 | miniupnpd | 2.2.2-r0 | — |
| Alpine v3.16 | miniupnpd | 2.2.2-r0 | — |
| Alpine v3.15 | miniupnpd | 2.2.2-r0 | — |
| Alpine v3.14 | miniupnpd | 2.2.2-r0 | — |
Advisories 2
- USN-4542-1 miniupnpd vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-1811-1 miniupnpd - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://www.vdoo.com/blog/security-issues-discovered-in-miniupnp
- https://github.com/miniupnp/miniupnp/commit/13585f15c7f7dc28bbbba1661efb280d530d114c
- https://github.com/miniupnp/miniupnp/commit/86030db849260dd8fb2ed975b9890aef1b62b692
- [debian-lts-announce] 20190530 [SECURITY] [DLA 1811-1] miniupnpd security update mailing-list
- USN-4542-1 vendor-advisory