TI-2026-74146 Aliases CVE-2026-110655 GHSA-r8vm-xv99-82gx

Heap out-of-bounds read in miniupnpc minixml parseatt

MEDIUM 45CWE-125Published 2026-10-14 · Updated 2026-10-14

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: High
Attack requirements: Present
Impact type: —
Confidentiality · integrity · availability: None · None · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

miniupnpc through 2.3.3 contains a one-byte heap out-of-bounds read in the minixml parseatt function (CWE-125). A malicious UPnP gateway can send crafted replies that make the client read past buffer bounds. An attacker on the local network who spoofs a gateway serving device descriptions or SOAP responses ending in '=' can crash the client. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.0029 21st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
miniupnp project	miniupnpc	up to 2.3.3	—	No fix listed	CNA

miniupnpc Vendorminiupnp project Affected up to 2.3.3 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for miniupnpc.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-14 Threatist record created from CVE-2026-110655
2026-10-15 Alias added: GHSA-r8vm-xv99-82gx
2026-10-15 CISA SSVC decision points changed
2026-10-15 Priority changed: LOW → MEDIUM
2026-10-16 Affected versions changed · Red Hat
2026-10-16 CVSS score added · Red Hat

References

Exploit 1

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

Patch 1

https://github.com/miniupnp/miniupnp/commit/3cfb4fb78d5ac04ed0dadc8dd842fc9e448916db

Other 2

TI-2013-00164 Stack-based buffer overflow in the ExecuteSoapAction function in the SOAPAction handler… CVSS 2.0HIGH 10.0
TI-2013-00163 The ProcessSSDPRequest function in minissdp.c in the SSDP handler in MiniUPnP MiniUPnPd… CVSS 2.0HIGH 7.8
TI-2017-06309 Integer signedness error in MiniUPnP MiniUPnPc v1.4.20101221 through v2.0 allows remote… CVSS 3.0CRITICAL 9.8
TI-2022-12960 An issue was discovered in ngiflib 0.4. CVSS 3.1MEDIUM 6.5
TI-2023-20300 ngiflib commit 84a75 was discovered to contain a segmentation violation via the function… CVSS 3.1MEDIUM 5.5
TI-2023-20299 ngiflib commit fb271 was discovered to contain a segmentation violation via the function… CVSS 3.1MEDIUM 5.5

See all 35 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences