Description
Integer signedness error in MiniUPnP MiniUPnPc v1.4.20101221 through v2.0 allows remote attackers to cause a denial of service or possibly have unspecified other impact.
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 | miniupnpc | 1.9.20140610-3 | — |
| Debian 13 | miniupnpc | 1.9.20140610-3 | — |
| Debian 12 | miniupnpc | 1.9.20140610-3 | — |
| Debian 8 | miniupnpc | 1.9.20140610-2+deb8u2 | DLA-2197-1 |
| Debian 7 | miniupnpc | 1.5-2+deb7u2 | DLA-949-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | miniupnpc | 1.9.20140610-2ubuntu2.16.04.1 | USN-3298-1 |
| Ubuntu 14.04 LTS | miniupnpc | 1.6-3ubuntu2.14.04.3 | USN-3298-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.6 | miniupnpc | 2.0-r1 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- MiniUPnP MiniUPnPc < 2.0 - Remote Denial of Service EDB-43501 · dos · May 11, 2017
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 3
- USN-3298-1 miniupnpc vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-949-1 miniupnpc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2197-1 miniupnpc - security update Debian Security (DSA / DLA) · Mar 9, 2026