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PatchSiren cyber security CVE debrief

CVE-2024-46666 Siemens CVE debrief

CVE-2024-46666 was publicly disclosed in the Siemens ProductCERT/CISA advisory on 2025-02-11 and later republised by CISA on 2026-03-12. The supplied corpus describes a remote unauthenticated denial-of-service condition that can prevent access to the GUI through specially crafted requests to specific endpoints. The advisory metadata ties the issue to Siemens RUGGEDCOM APE1808, but the vulnerability description text references FortiOS versions, so applicability should be verified directly against the Siemens advisory before any operational action.

Vendor
Siemens
Product
RUGGEDCOM APE1808
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2025-02-11
Original CVE updated
2026-03-12
Advisory published
2025-02-11
Advisory updated
2026-03-12

Who should care

Siemens RUGGEDCOM APE1808 owners, OT/ICS administrators, network and security teams responsible for device management interfaces, and anyone exposing the GUI to untrusted or flat networks.

Technical summary

The advisory text describes a CWE-770 resource-allocation-without-limits condition. In practice, a remote unauthenticated attacker can send specially crafted requests to specific endpoints and cause the GUI to become unavailable. The CVSS vector provided in the source is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L, indicating network access, no privileges, no user interaction, and limited availability impact. The source corpus is internally inconsistent: the metadata points to Siemens RUGGEDCOM APE1808 and Siemens/CISA advisory identifiers, while the description names FortiOS versions. Treat that mismatch as a validation requirement, not as a resolved fact.

Defensive priority

Medium priority. Address promptly if the management GUI is reachable from broader networks or if the device is operationally critical.

Recommended defensive actions

  • Confirm applicability against Siemens ProductCERT advisory SSA-770770 and CISA advisory ICSA-25-044-06 before changing production systems.
  • Restrict GUI access to trusted management networks only; use IP allowlisting, VPN, or jump hosts where possible.
  • Monitor for repeated or abnormal requests to the affected endpoints and for unexpected GUI unavailability.
  • Apply vendor-recommended updates or mitigations once applicability is verified; do not rely on the corrupted product mapping in the supplied corpus alone.
  • Segment OT/ICS management traffic and follow CISA defense-in-depth and ICS recommended practices to reduce management-plane exposure.
  • Plan a recovery path for GUI unavailability, including out-of-band management and configuration backup validation.

Evidence notes

The source corpus includes a CISA CSAF item and Siemens advisory references, but the vulnerability description is inconsistent with the vendor/product metadata. Specifically, the advisory metadata names Siemens RUGGEDCOM APE1808 and Siemens ProductCERT identifiers (SSA-770770 / ICSA-25-044-06), while the description text references FortiOS versions and a remediation field mentions Fortigate NGFW V7.4.7. Because of this mismatch, the safe interpretation is that the corpus documents a network-reachable GUI denial-of-service issue, but product-specific applicability must be verified directly from the official Siemens advisory pages.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-46666 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-46666

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

  • CVE-2024-46666 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-46666

    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-25-044-06.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/csaf/ssa-770770.json

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/html/ssa-770770.html

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-25-044-06

    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

  • Source reference

    Unverified legacy reference

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

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.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.