---
title: "CVE-2026-79393: Xiongmai IP Camera XM530 - Buffer Overflow"
description: "Xiongmai IP Camera XM530 firmware HMT.CM2005-v220608.1837 and earlier contains a heap-based buffer overflow caused by improper handling of wsa5:Action string in WS-Addressing Action transformation function in Sofia IPC daemon, letting remote unauthenticated attackers cause denial of service or execute arbitrary code via crafted SOAP request."
url: https://panop.io/threat-heartbeat/CVE-2026-79393/
---

# CVE-2026-79393 Xiongmai IP Camera XM530 - Buffer Overflow

Xiongmai IP Camera XM530 firmware HMT.CM2005-v220608.1837 and earlier contains a heap-based buffer overflow caused by improper handling of wsa5:Action string in WS-Addressing Action transformation function in Sofia IPC daemon, letting remote unauthenticated attackers cause denial of service or execute arbitrary code via crafted SOAP request.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.74% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-79393)

## Details

Type

Buffer Overflow

Impact

Remote Code Execution, Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

11 September 2026

Updated

15 October 2026

Weakness

[CWE-122](https://cwe.mitre.org/data/definitions/122.html)

## Vendor fix

Update to the latest firmware version beyond HMT.CM2005-v220608.1837.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-79393](https://nvd.nist.gov/vuln/detail/CVE-2026-79393)
- [https://github.com/ShiroiBoushi/vulnerability-research/tree/main/CVE-2026-79393](https://github.com/ShiroiBoushi/vulnerability-research/tree/main/CVE-2026-79393)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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