CVE-2026-110656

low

Description

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.

References

https://www.vulncheck.com/advisories/miniupnpc-through-2.3.3-heap-out-of-bounds-read-via-minixml-parseelt

https://hackmd.io/@haind-pwn/miniupnpc-minixml-oob-read

https://github.com/miniupnp/miniupnp/commit/64ef08a12aabab57be0bf7e40f047c8f14dedf9c

https://github.com/miniupnp/miniupnp/blob/bf4215a7574f88aa55859db9db00e3ae58cf42d6/miniupnpc/src/minixml.c#L141

https://github.com/miniupnp/miniupnp

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-101129

Details

Source: Mitre, NVD

Published: 2026-10-14

Updated: 2026-10-16

Risk Information

CVSS v2

Base Score: 1.8

Vector: CVSS2#AV:A/AC:H/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 3.1

Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Severity: Low

CVSS v4

Base Score: 2.3

Vector: CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Severity: Low

EPSS

EPSS: 0.0029