CVE-2026-110656miniupnpc through 2.3.3 Heap Out-of-Bounds Read via minixml parseelt
Updated under an hour ago ()
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It affects miniupnp project miniupnpc. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 3.1 LOW (v3.1, CNA)CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
miniupnp project miniupnpc miniupnp_project:miniupnpc (from the name) | through 2.3.3 | CNA record |
References
- https://hackmd.io/@haind-pwn/miniupnpc-minixml-oob-readtechnical-description, exploit
- https://github.com/miniupnp/miniupnp/blob/bf4215a7574f88aa55859db9db00e3ae58cf42d6/miniupnpc/src/minixml.c#L141technical-description
- https://github.com/miniupnp/miniupnp/commit/64ef08a12aabab57be0bf7e40f047c8f14dedf9cpatch
- https://github.com/miniupnp/miniupnpproduct
- https://www.vulncheck.com/advisories/miniupnpc-through-2.3.3-heap-out-of-bounds-read-via-minixml-parseeltthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.