Chemical Transportation Incidents – Week of 5-9-26

Reporting Background 

See this post for explanation, with the most recent update here (removed from paywall). 

Data from PHMSA’s online database of transportation related chemical incidents that have been reported to the agency. 

Incidents Summary  

• Number of incidents – 458 (418 highway, 36 air, 4 rail, 0 water) 

• Serious incidents – 3 (1 Bulk release, 1 evacuation, 1 injury, 0 death, 1 major artery closed, 2 fire/explosion, 30 no release)  

• Largest container involved – 34,500-gal DOT 113C120W9 Railcar {Ethylene, Refrigerated Liquid (Cryogenic Liquid)} Venting through pressure relief valve as intended. 

• Largest amount spilled – 1,000-gal Tank truck {Hydrochloric Acid} Over pressure during offloading.  

• Total amount reported spilled in all incidents – 2246.0-gal 

NOTE: Links above are to Form 5800.1 for the described incidents. 

Most Interesting Chemical: Bromotrifluoromethane: A colorless, odorless gas at room conditions Shipped as a liquid confined under its own vapor pressure. Noncombustible. Nontoxic but can asphyxiate by the displacement of air. Contact with the unconfined liquid can cause frostbite by evaporative cooling. Exposure of the container to prolonged heat or fire can cause it to rupture violently and rocket. (Source: CameoChemicals.NOAA.gov).  

Review – 3 Advisories and 4 Updates Published – 6-9-26 – Part 2

On Tuesday, CISA’s NCCIC-ICS published three control system security advisories that I addressed on that day. Yesterday, CISA got around to sending out their email about the advisories and updates, so I can now describe the four updates that were published but otherwise hidden from view on Tuesday. 

Updates  

Schneider Update #1 - This update provides additional information on the Modicon M340 advisory that was originally published on September 11th, 2025. 

NOTE: I briefly mentioned the Schneider advisory on which this update was based on April 19th, 2026. 

Schneider Update #2 - This update provides additional information on the Modicon M340 advisory that was originally published on February 4th, 2025, and most recently updated on September 11th, 2025. 

NOTE: I briefly mentioned the Schneider advisory on which this update was based on April 19th, 2026. 

Schneider Update #3 - This update provides additional information on the Modicon M340 advisory that was originally published on November 21st, 2024. 

NOTE: I briefly mentioned the Schneider advisory on which this update was based on April 19th, 2026. 

Mitsubishi Update - This update provides additional information on the FA Engineering Software Products advisory that was originally published on May 14th, 2024, and most recently updated on January 15th, 2026. 

For more information on these advisories, see my article at CFSN Detailed Analysis - https://patrickcoyle.substack.com/p/3-advisories-and-4-updates-published-bd2 - subscription required. 

Review – Bills Introduced – 6-10-26

Yesterday, with both the House and Senate in session, there were 44 bills introduced. One of those bills may receive additional coverage: 

S 4728 A bill to require the Director of the Cybersecurity and Infrastructure Security Agency to work with Sector Risk Management Agencies to update sector-specific plans, and for other purposes. Warner, Mark R. [Sen.-D-VA]   

For more information on these bills, including legislative history for similar bills in the 118th Congress, including a mention-in-passing of a bio-agent smuggling bill, see my article at CFSN Detailed Analysis - https://patrickcoyle.substack.com/p/bills-introduced-6-10-26 - subscription required. 

Review – 3 Advisories and 1 Update Published – 6-11-26

Today CISA’s NCCIC-ICS published three control system security advisories for products from Brickcom, Naxclow, and Yarbo. They also updated an advisory for products from Schneider Electric. 

Advisories  

Brickcom Advisory - This advisory describes two vulnerabilities (with publicly available exploit) in multiple Brickcom cameras. 

Naxclow Advisory - This advisory describes seven vulnerabilities in Naxclow IoT Platform. 

Yarbo Advisory - This advisory describes two vulnerabilities in the Yarbo Android/iOS Mobile Application and Cloud Infrastructure for Yarbo yard robots. 

Updates  

Schneider Update - This update provides additional information on the Uni-Telway Driver advisory that was originally published on March 11th, 2025, and most recently updated on February 24th, 2026. 

NOTE: I briefly mentioned the Schneider update upon which this was based on March 16th, 2026. 

For more information on these advisories, see my article at CFSN Detailed Analysis - https://patrickcoyle.substack.com/p/3-advisories-and-1-update-published-2b7 - subscription required.