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CVE-2026-110655— miniupnpc through 2.3.3 Heap Out-of-Bounds Read via minixml parseatt

Quick assessment

Affected
miniupnp project miniupnpc
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

miniupnpc 2.3.3 及之前版本存在一个堆越界读漏洞，位于 minixml 的 parseatt 函数中。该漏洞允许恶意的 UPnP 网关通过构造特定的响应，读取超出缓冲区边界的内存内容。本地网络上的攻击者可以伪造提供设备描述或 SOAP 响应的网关，使客户端崩溃，特别是当这些响应以 '=' 字符结尾时。

CVSS 3.1 · Low EPSS 0.29% · P20

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services

Affected Version Matrix 1

VendorProduct Version RangeStatus
miniupnp project miniupnpc ≤ 2.3.3 affected
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I. Basic Information for CVE-2026-110655

Vulnerability Information
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Vulnerability Title
miniupnpc through 2.3.3 Heap Out-of-Bounds Read via minixml parseatt
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
miniupnp project miniupnpc 0 ~ 2.3.3 -

II. Public POCs for CVE-2026-110655

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III. Intelligence Information for CVE-2026-110655

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Patches & Fixes for CVE-2026-110655 (1)

Other References for CVE-2026-110655 (3)

IV. Related Vulnerabilities

Same product: miniupnpc
Same vendor: miniupnp project
Same weakness: CWE-125

V. Comments for CVE-2026-110655

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