Description
An AddPortMapping Denial Of Service vulnerability in MiniUPnP MiniUPnPd through 2.1 exists due to a NULL pointer dereference in upnpredirect.c.
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