---
title: "Security digest: June 11, 2021"
url: https://erroneo.us/security/2021-06-11/
description: "June 11, 2021 vulnerability digest: 1 brief (ScadaBR CVE-2021-26829/26828: 2021 HMI Bugs Join…). What to patch and who can relax."
type: security-digest-day
section: "Security Digest"
date_published: 2021-06-11
date_modified: 2026-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# Security digest: June 11, 2021

1 editorial brief.

## Take stock

- Check exposure: ScadaBR CVE-2021-26829/26828: 2021 HMI Bugs Join KEV . Anyone running ScadaBR or an OpenPLC-bundled ScadaBR HMI (through 0.9.1 on Linux or 1.12.4 on Windows), especially if its web interface is reachable from the internet or still uses default credentials.
- None of it touches your stack? Then there is nothing to do today. That is a result, not a failure to read carefully.

## Editorial briefs

- **Check exposure** [ScadaBR CVE-2021-26829/26828: 2021 HMI Bugs Join KEV](https://erroneo.us/security/briefs/scadabr-cve-2021-26829-26828-xss-jsp-upload/index.md): These are old, authenticated web bugs, but attackers are using them against internet-facing SCADA HMIs with default passwords; find any ScadaBR you run, take it off the internet and fix its credentials.

## Known exploited (CISA KEV)

None.

## Critical advisories

None.

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Source page: https://erroneo.us/security/2021-06-11/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt