CVE-2026-110655
miniupnpc through 2.3.3 Heap Out-of-Bounds Read via minixml parseatt
miniupnp project miniupnpc
CVSS
2.3LowExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 14 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.29%Chance of exploitation activity in the next 30 days, higher than 20% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
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.
Text from CVE List
Affected versions 1
- miniupnpcaffected: all versions through 2.3.3CVE List
References 5
- github.com/miniupnp/miniupnp/commit/3cfb4fb78d5ac04ed0dadc8dd842fc9e448916dbFixvia CVE List
- vulncheck.com/advisories/miniupnpc-through-2.3.3-heap-out-of-bounds-read-via-minixml-parseattAdvisoryvia CVE List
- hackmd.io/@haind-pwn/miniupnpc-minixml-oob-readExploitvia CVE List
- github.com/miniupnp/miniupnp/blob/bf4215a7574f88aa55859db9db00e3ae58cf42d6/miniupnpc/src/minixml.c#L61Referencevia CVE List
- github.com/miniupnp/miniupnpReferencevia CVE List