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PatchSiren cyber security CVE debrief

CVE-2022-27456 Festo Didactic SE CVE debrief

CVE-2022-27456 is a use-after-free in MariaDB Server v10.6.3 and below, identified in the advisory material for Festo Didactic SE MES PC. The advisory ties remediation to replacing the vulnerable XAMPP-based component with Factory Control Panel, and the published CVSS 3.1 vector indicates a network-reachable issue with no authentication required and high availability impact.

Vendor
Festo Didactic SE
Product
MES PC
CVSS
HIGH 7.5
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

Administrators, operators, and support teams responsible for Festo Didactic SE MES PC deployments should care most, especially where the affected MariaDB/XAMPP stack is still in use. Security teams supporting industrial or lab/OT environments should also review exposure and replacement status.

Technical summary

The source corpus describes CVE-2022-27456 as a CWE-416 use-after-free in the MariaDB Server component VDec::VDec at /sql/sql_type.cc. The cited CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, which indicates a remotely reachable weakness with no privileges or user interaction required and a primary impact on availability.

Defensive priority

High. Even though the vector is availability-only, the no-auth, network-reachable profile and the advisory’s MES PC context make this worth prompt remediation on any still-deployed affected systems.

Recommended defensive actions

  • Confirm whether any Festo Didactic SE MES PC systems are still running the vulnerable XAMPP/MariaDB component described in the advisory.
  • Obtain the current Factory Control Panel version from Festo support as directed in the remediation guidance.
  • Plan for the restart required by the vulnerable component replacement and validate the updated system after maintenance.
  • Use the official CISA and vendor references to track advisory revisions and confirm you are using the latest remediation guidance.
  • If you cannot remediate immediately, reduce exposure by limiting network access to the affected MES PC environment and monitoring for instability or service disruption.

Evidence notes

This debrief is based only on the supplied CISA CSAF advisory record and the official links listed in the source corpus. The CVE publication date used here is 2024-02-27, matching the advisory publication date; the later 2026-01-27 entry is a CISA republication/revision date and not the original issue date. The record marks the issue as non-KEV and provides the official CVSS vector and CWE-416 mapping.

Sources and references

Verified primary and authoritative sources

  • CVE-2022-27456 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2022-27456

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

  • CVE-2022-27456 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2022-27456

    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.