Description
miniupnpc through 2.3.3 contains a one-byte heap out-of-bounds read vulnerability in the minixml parseatt function that allows malicious UPnP gateways to read past buffer bounds via crafted replies. Attackers on the local network can spoof a gateway serving device descriptions or SOAP responses ending in '=' to crash the client.
Metrics
CVSS 3.1 3.1/10
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:LWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| miniupnp project | miniupnpc | <= 2.3.3 |
References
- https://github.com/miniupnp/miniupnp
- https://github.com/miniupnp/miniupnp/blob/bf4215a7574f88aa55859db9db00e3ae58cf42d6/miniupnpc/src/minixml.c#L61
- https://github.com/miniupnp/miniupnp/commit/3cfb4fb78d5ac04ed0dadc8dd842fc9e448916db
- https://hackmd.io/@haind-pwn/miniupnpc-minixml-oob-read
- https://www.vulncheck.com/advisories/miniupnpc-through-2.3.3-heap-out-of-bounds-read-via-minixml-parseatt
Timeline
- Published
- Oct 14, 2026
- Last modified
- Oct 15, 2026
- NVD status
- Deferred