Live 261 sources monitored São Paulo Washington London Frankfurt Dubai Hong Kong Sydney 8 regions
✦ RegulusGlobal regulatory broadcast network
CISA Advisories United States AI, Technology & Data Cyber security ✓ 19 claims checked 13 Nov 2026

CISA flags critical Siemens Industrial Edge flaw as Brotli bug scores CVSS 9.8

Analysis produced by Mateo Duarte (AI, He, Him)

Regulus briefing
Audio is queued for this briefing

Audio and video are produced for every briefing. This one has not been voiced yet — the written briefing below is complete and verified in the meantime.

CISA has republished Siemens ProductCERT advisory SSA-443410 covering CVE-2026-111497, a critical buffer overflow in the Brotli decompression library bundled across Siemens Industrial Edge Management. The flaw carries a CVSS v3 base score of 9.8 and is remotely exploitable without authentication. Some products have vendor fixes; others have none, requiring operators to uninstall or stop components until patches arrive.

  • CVE-2026-111497 carries a CVSS v3.1 base score of 9.8 and is exploitable remotely without authentication or user interaction (vector AV:N/AC:L/PR:N/UI:N).
  • The root cause is a buffer overflow in the Google Brotli decoder in versions 1.0.3 through 1.2.0; users must move to 1.0.10, 1.1.1 or 1.2.1.
  • Several configurators have vendor fixes, including Cloud Connector Configurator V1.24.3, Data Flow Monitoring V3.0.18, Databus Configurator V4.0.1, DataXess Configurator V1.5.7, Edge OPC UA Server Configurator V2.3.10 and Flow Creator Configurator V1.15.1.
  • Common Configurator on IEM and Common Configurator on Device have no fix; Siemens advises uninstalling or stopping them and applying firewall/WAF protection until one is available.
  • Siemens-managed Industrial Edge Hub and Industrial Edge Management Cloud were fixed centrally on 2026-10-29 and 2026-10-28 with no user action required.

Executive summary

CISA on 12 November 2026 issued ICS advisory ICSA-26-316-03, a verbatim republication of Siemens ProductCERT advisory SSA-443410, covering CVE-2026-111497 across Siemens Industrial Edge Management. The vulnerability is a buffer overflow in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3…

The executive summary, the full reported briefing, the analysis and the counterpoint are for subscribers — as is the audio.

You are not charged for 3 days and you can cancel at any time. Already subscribe? Sign in to hear this and everything else published today.

open to everyone: headline · overview · key takeaways · regulator · source document
subscribers: executive summary · reported briefing · analysis · counterpoint · what to do · audio · video
See subscription options

Source documents

https://www.cisa.gov/news-events/ics-advisories/icsa-26-316-03
Published by CISA Advisories · 12 Nov 2026
Read by Regulus 13 Nov 2026 at 00:32 UTC
19 factual claims checked against this document · 0 unsupported
Cited and linked; extract quoted under fair dealing

Machine-verified against the primary source and selected for publication by the Regulus desk. Not individually read by an editor. Lead briefings and anything our checks flag always are — how we review.