---
id: CVE-2026-79393
title: >-
  A heap-based buffer overflow vulnerability in the WS-Addressing Action
  transformation function in the Sofia IPC daemon in Xiongmai IP Camera XM530
  firmware HMT.CM2005-v220608.1837 and earlier allows remote unauthenticated
  attackers to ca…
summary: >-
  A heap-based buffer overflow vulnerability in the WS-Addressing Action
  transformation function in the Sofia IPC daemon in Xiongmai IP Camera XM530
  firmware HMT.CM2005-v220608.1837 and earlier allows remote unauthenticated
  attackers to ca…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-122
published: '2026-09-11'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T20:00:03.713'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79393'
references:
  - url: >-
      https://github.com/ShiroiBoushi/vulnerability-research/tree/main/CVE-2026-79393
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
epss: 0.00744
epssPercentile: 0.52746
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-11T18:49:16.321627Z'
ingestedAt: '2026-09-14T00:35:28.534Z'
---

## Overview

A heap-based buffer overflow vulnerability in the WS-Addressing Action transformation function in the Sofia IPC daemon in Xiongmai IP Camera XM530 firmware HMT.CM2005-v220608.1837 and earlier allows remote unauthenticated attackers to cause a denial of service or potentially execute arbitrary code via a crafted SOAP request containing a wsa5:Action string exceeding 128 bytes.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.