---
title: "CVE-2026-86520: Bransys ELD - Hardcoded Credentials"
description: "Bransys ELD contains hardcoded MQTT credentials, letting attackers read real-time data from active devices connected to the affected MQTT broker, exploit requires access to the MQTT broker."
url: https://panop.io/threat-heartbeat/CVE-2026-86520/
---

# CVE-2026-86520 Bransys ELD - Hardcoded Credentials

Bransys ELD contains hardcoded MQTT credentials, letting attackers read real-time data from active devices connected to the affected MQTT broker, exploit requires access to the MQTT broker.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.41% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-86520)

## Details

Type

Hardcoded Credentials

Impact

Information Disclosure

CVSS vector

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

Published

18 September 2026

Updated

15 October 2026

Weakness

[CWE-798](https://cwe.mitre.org/data/definitions/798.html)

## Vendor fix

Update to the latest version that removes hardcoded MQTT credentials or reconfigure to use unique credentials.

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-2026-86520](https://nvd.nist.gov/vuln/detail/CVE-2026-86520)
- [https://github.com/cisagov/CSAF/blob/develop/csaf\_files/OT/white/2026/icsa-26-260-01.json](https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-260-01.json)
- [https://www.cisa.gov/news-events/ics-advisories/icsa-26-260-01](https://www.cisa.gov/news-events/ics-advisories/icsa-26-260-01)

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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

Panop answers these inside your environment, for this CVE and every other finding.

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