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PatchSiren cyber security CVE debrief

CVE-2020-2812 Festo Didactic SE CVE debrief

CVE-2020-2812 is an Oracle MySQL Server vulnerability in the Stored Procedure component that can be used by a high-privileged attacker with network access to trigger a hang or repeatable crash of MySQL Server. The supplied CVSS vector shows an availability-only impact, with no confidentiality or integrity impact recorded. In the supplied CISA CSAF advisory context, the issue is tied to Festo Didactic SE MES PC. The vendor remediation notes say Festo Didactic has released Factory Control Panel as a replacement for XAMPP on its MES PCs and that the current version includes fixes for these vulnerabilities.

Vendor
Festo Didactic SE
Product
MES PC
CVSS
MEDIUM 4.9
CISA KEV
Not listed in stored evidence
Original CVE published
2024-02-27
Original CVE updated
2026-01-27
Advisory published
2024-02-27
Advisory updated
2026-01-27

Who should care

Festo Didactic SE MES PC operators and administrators, teams responsible for any bundled MySQL/XAMPP components in those deployments, and defenders who manage privileged MySQL access over the network.

Technical summary

The vulnerable component is Oracle MySQL Server: Stored Procedure. A network attacker who already has high privileges can exploit the flaw through multiple protocols to cause service disruption, typically a hang or frequent repeatable crash. The supplied affected-version ranges are 5.6.47 and prior, 5.7.29 and prior, and 8.0.19 and prior.

Defensive priority

Medium

Recommended defensive actions

  • Check whether any MES PC deployment or related system is running an affected Oracle MySQL version or the vulnerable bundled component referenced in the advisory.
  • Obtain the current Factory Control Panel version from Festo technical support and replace XAMPP on MES PCs, as stated in the vendor remediation.
  • Restrict and monitor privileged MySQL accounts and limit network exposure to the database service to reduce the chance of a high-privilege network attack.
  • Apply CISA ICS recommended practices and defense-in-depth guidance to segment, harden, and monitor the environment.
  • Validate the update in a maintenance window and confirm the vulnerable component is no longer present after remediation.

Evidence notes

The supplied source item is CISA CSAF advisory ICSA-26-027-02, initially published on 2024-02-27 and later republished on 2026-01-27. Its description states that CVE-2020-2812 is a MySQL Server stored procedure vulnerability that can cause a hang or repeatable crash. The remediation entry says Factory Control Panel replaces XAMPP on MES PCs and includes fixes, obtainable through Festo technical support.

Sources and references

Verified primary and authoritative sources

  • CVE-2020-2812 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2020-2812

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2020-2812 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2020-2812

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-027-02.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://festo.csaf-tp.certvde.com/.well-known/csaf/white/2024/fsa-202402.json

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://certvde.com/en/advisories/vendor/festo/

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://festo.com/psirt

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://certvde.com/en/advisories/VDE-2023-065

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-26-027-02

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.