TI-2026-83615 Aliases CVE-2026-120226 GHSA-g8f3-phxq-9ggc

Buffer overflow in Hangzhou Xiongmai P2PAPI.dll P2P SDK

MEDIUM 55CWE-119Published 2026-11-01 · Updated 2026-11-06

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
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

Hangzhou Xiongmai Technology P2PAPI.dll 1.3.3.32 on Windows is affected. In the P2P SDK, the P2PAPI_Connect function copies an input string without checking its size, which causes a buffer overflow (CWE-120). A local attacker can exploit this, and the exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

A security vulnerability has been detected in Hangzhou Xiongmai Technology P2PAPI.dll 1.3.3.32 on Windows. Affected by this issue is the function P2PAPI_Connect of the component P2P SDK. Such manipulation of the argument input as part of String leads to buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00124 2nd percentileScored 2026-11-07

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
Hangzhou Xiongmai Technology Co., Ltd	P2PAPI.dll	1.3.3.32	—	No fix listed	CNA

P2PAPI.dll VendorHangzhou Xiongmai Technology Co., Ltd Affected 1.3.3.32 Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:hangzhou_xiongmai_technology:p2papi.dll::::::::	—	—	—

cpe:2.3:a:hangzhou_xiongmai_technology:p2papi.dll:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

The sources list no fixed version for Hangzhou Xiongmai Technology P2PAPI.dll.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Timeline

2026-11-01 Threatist record created from CVE-2026-120226
2026-11-01 Alias added: GHSA-g8f3-phxq-9ggc
2026-11-06 CISA SSVC decision points changed
2026-11-06 Priority changed: LOW → MEDIUM

References

Other 1

https://gist.github.com/Ishanoshada/a47d24d77dd03f34c7f324491b59edac

TI-2025-40485 Authentication bypass vulnerability in Xiongmai XM530 IP cameras on Firmware… CVSS 3.1CRITICAL 9.8
TI-2022-22423 Multiple Xiongmai NVR devices, including MBD6304T V4.02.R11.00000117.10001.131900.00000… CVSS 3.1CRITICAL 9.8
TI-2025-40486 An issue was discovered in Xiongmai XM530 IP cameras on firmware… CVSS 3.1HIGH 7.5
TI-2018-07153 Buffer overflow in XiongMai uc-httpd 1.0.0 has unspecified impact and attack vectors, a… CVSS 3.0CRITICAL 9.8
TI-2021-16319 Xiongmai Camera XM-JPR2-LX V4.02.R12.A6420987.10002.147502.00000 is vulnerable to account takeover. CVSS 3.1HIGH 7.5
TI-2017-05216 XiongMai uc-httpd has directory traversal allowing the reading of arbitrary files via a "GET ../" HTTP request. CVSS 3.0CRITICAL 9.8

See all 17 →

Sources

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