CVE-2026-110656
miniupnpc through 2.3.3 Heap Out-of-Bounds Read via minixml parseelt
CVSS Score
3.1
EPSS Score
0.0%
EPSS Percentile
0th
miniupnpc through 2.3.3 contains a one-byte heap out-of-bounds read vulnerability in the minixml parseelt function's namespace-prefix handling that skips an end-of-buffer check after advancing past ':'. A malicious or spoofed UPnP gateway on the local network can send a device description or SOAP reply ending in ':' within an element name to crash the client.
| CWE | CWE-125 |
| Vendor | miniupnp project |
| Product | miniupnpc |
| Published | Oct 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
miniupnp project / miniupnpc
0 ≤ 2.3.3
References
hackmd.io: https://hackmd.io/@haind-pwn/miniupnpc-minixml-oob-read github.com: https://github.com/miniupnp/miniupnp/blob/bf4215a7574f88aa55859db9db00e3ae58cf42d6/miniupnpc/src/minixml.c#L141 github.com: https://github.com/miniupnp/miniupnp/commit/64ef08a12aabab57be0bf7e40f047c8f14dedf9c github.com: https://github.com/miniupnp/miniupnp vulncheck.com: https://www.vulncheck.com/advisories/miniupnpc-through-2.3.3-heap-out-of-bounds-read-via-minixml-parseelt
Credits
HaiND from the Post and Telecommunication Institute of Technology