Critical Path Traversal Vulnerability, CVSS 9.8, Intrado EGW
Summary
CISA ICS-CERT published advisory ICSA-26-113-06 disclosing a path traversal vulnerability (CVE-2026-6074, CVSS 9.8) in Intrado 911 Emergency Gateway (EGW) versions 5.x, 6.x, and 7.x. Successful exploitation could allow an attacker to read, modify, or delete files on affected systems. No known public exploitation has been reported. CISA recommends minimizing network exposure, isolating control system networks behind firewalls, and using VPNs for required remote access.
“Successful exploitation of this vulnerability could allow an attacker to read, modify, or delete files.”
Operators of Intrado 911 Emergency Gateway across versions 5.x through 7.x should treat this as a priority patch/update tracking item. While no active exploitation is known, the CVSS 9.8 score and file read/modify/delete access level make this critical for emergency services infrastructure. Organizations with these systems should verify network segmentation from both internet-facing and business networks, and update any VPN configurations used for remote access to these devices.
About this source
CISA's Industrial Control Systems team publishes vulnerability advisories specifically for OT, ICS, SCADA, and critical infrastructure software: Siemens, Schneider Electric, Rockwell Automation, ABB, Honeywell, Emerson, GE Digital, plus the supporting protocols. Around 65 advisories a month, each with a CVSS score, affected products, mitigation guidance, and where applicable a Known Exploited Vulnerabilities Catalog entry. ICS advisories are higher-stakes than general IT vulns: a CVSS 7 in a PLC firmware can mean physical safety risk in a factory or grid asset. Watch this if you secure industrial networks, run a SOC for a manufacturer, or advise critical infrastructure operators. GovPing publishes each advisory with the affected vendor, CVSS, and CISA link.
What changed
CISA ICS-CERT published advisory ICSA-26-113-06 disclosing CVE-2026-6074, a path traversal vulnerability (CVSS 9.8, critical severity) in Intrado 911 Emergency Gateway versions 5.x, 6.x, and 7.x. The vulnerability could allow an attacker to read, modify, or delete files on affected systems. No patches or updates were specified in the advisory.
Organizations operating Intrado EGW equipment in emergency services sectors should immediately implement defensive measures: isolate affected systems from the internet and business networks, deploy firewalls, and ensure any remote access uses current VPN versions. Organizations should perform impact analysis and risk assessment prior to deploying defensive measures and report suspected malicious activity to CISA.
What to do next
- Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet
- Locate control system networks and remote devices behind firewalls and isolating them from business networks
- When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available
Archived snapshot
Apr 23, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
ICS Advisory
Intrado 911 Emergency Gateway (EGW)
Release Date
April 23, 2026
Alert Code ICSA-26-113-06 Related topics: Industrial Control System Vulnerabilities, Industrial Control Systems View CSAF
Summary
Successful exploitation of this vulnerability could allow an attacker to read, modify, or delete files.
The following versions of Intrado 911 Emergency Gateway (EGW) are affected:
- Emergency Gateway 7.x (CVE-2026-6074)
- Emergency Gateway 6.x (CVE-2026-6074)
- Emergency Gateway 5.x (CVE-2026-6074)
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 9.8 | Intrado | Intrado 911 Emergency Gateway (EGW) | Path Traversal: '.../...//' |
Background
- Critical Infrastructure Sectors: Emergency Services
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: United States
Vulnerabilities
CVE-2026-6074
Acknowledgments
- An anonymous source reported this vulnerability to CISA
Legal Notice and Terms of Use
This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability.
Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Locate control system networks and remote devices behind firewalls and isolating them from business networks.
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
Do not click web links or open attachments in unsolicited email messages.
Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.
Revision History
- Initial Release Date: 2026-04-23
| Date | Revision | Summary |
|---|---|---|
| 2026-04-23 | 1 | Initial Publication |
Legal Notice and Terms of Use
This product is provided subject to this Notification and this Privacy & Use policy.
Tags
Sector: Emergency Services Sector Topics: Industrial Control System Vulnerabilities, Industrial Control Systems
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