PatchSiren

PatchSiren cyber security CVE debrief

CVE-2022-3524 Siemens CVE debrief

CVE-2022-3524 is a remotely reachable Linux kernel issue described as a memory leak in ipv6_renew_options within the IPv6 Handler. In the Siemens/CISA advisory, the issue affects multiple SCALANCE W-series wireless products and is remediated by updating to V3.0.0 or later.

Vendor
Siemens
Product
SCALANCE WAB762-1 (6GK5762-1AJ00-6AA0)
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2023-06-13
Original CVE updated
2024-04-09
Advisory published
2023-06-13
Advisory updated
2024-04-09

Who should care

Operators and defenders responsible for Siemens SCALANCE WAB/WAM/WUB/WUM devices, especially industrial networks where the affected products may be externally reachable or broadly deployed.

Technical summary

The supplied advisory corpus ties CVE-2022-3524 to a Linux kernel IPv6 Handler flaw affecting Siemens SCALANCE wireless products. The issue is described as a memory leak in ipv6_renew_options and is remotely attackable, with the published CVSS v3.1 vector of AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N (5.3, Medium). Siemens lists 19 affected product variants and directs customers to update to V3.0.0 or later.

Defensive priority

Elevated for exposed or operationally critical Siemens SCALANCE deployments; otherwise moderate because the published severity is Medium.

Recommended defensive actions

  • Update affected Siemens SCALANCE products to V3.0.0 or later as directed by Siemens.
  • Inventory SCALANCE WAB/WAM/WUB/WUM deployments and verify exact model numbers against the advisory's affected product list.
  • Prioritize remediation for devices that are network-reachable or used in sensitive industrial environments.
  • Review Siemens advisory guidance and CISA industrial control system recommended practices for layered defense and exposure reduction.
  • Confirm whether compensating controls such as segmentation and access restriction are in place until patching is complete.

Evidence notes

CISA’s CSAF advisory ICSA-25-044-09 and Siemens advisory SSA-769027 identify 19 affected Siemens SCALANCE product variants and recommend updating to V3.0.0 or later. The CVE description attributes the flaw to the Linux kernel function ipv6_renew_options and states that manipulation can lead to a memory leak via remote attack. The supplied timeline shows publication on 2025-02-11 and a 2025-05-06 revision that only fixed typos.

Sources and references

Verified primary and authoritative sources

  • CVE-2022-3524 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2022-3524

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

  • CVE-2022-3524 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2022-3524

    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/2025/icsa-25-044-09.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/csaf/ssa-769027.json

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/html/ssa-769027.html

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-25-044-09

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/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

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf

    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.