The CIP Briefing

Fourteen days. That is all you have until the June 30, 2026 AWIA deadline. If you serve 50,000–99,999 people, your updated Emergency Response Plan must be certified by then. If you serve 3,301–49,999, your recertified Risk and Resilience Assessment is due June 30 — your updated ERP follows on December 31, 2026. If you haven't submitted through EPA's webform yet, you are now in the red zone. There will be no grace period, and an uncertified utility is an audit-ready target.

On the threat intelligence front, this was a heavy week for the CISA Known Exploited Vulnerabilities catalog — seven new CVEs were added between June 8 and June 12. Two of them matter significantly to your environment: a Google Chrome/Chromium V8 vulnerability (CVE-2026-11645) that is being actively exploited in the wild and affects the browser your operators and admin staff use every day on SCADA workstations and business PCs, and a Cisco Catalyst SD-WAN Manager vulnerability (CVE-2026-20245) that could allow attackers to manipulate the management plane of any utility running Cisco SD-WAN to connect remote sites. Additionally, CISA issued a new Binding Operational Directive (BOD 26-04) updating vulnerability prioritization guidance — a signal that the federal government is accelerating its response tempo and expects critical infrastructure operators to keep pace. Meanwhile, WaterISAC (Member Login Required) flagged the emergence of Mythos-class AI models that are reshaping the vulnerability discovery landscape, meaning the speed at which new exploits are developed against your systems is about to increase dramatically.

The message is simple: patch Chrome now, audit your SD-WAN management interfaces, and get your AWIA paperwork filed this week — not next.

🟡 [ACTIVE THREAT INTEL] CISA Issues BOD 26-04: Updated Vulnerability Prioritization for Accelerating Threat Landscape

Published June 11, 2026. WaterISAC (Member Login Required) posted a TLP:CLEAR alert that CISA has issued Binding Operational Directive 26-04, updating how vulnerabilities are prioritized for remediation across critical infrastructure. While BODs are legally binding only on Federal Civilian Executive Branch agencies, CISA has consistently stated that all critical infrastructure owners — including water and wastewater utilities — should treat BOD guidance as the baseline standard of care. This directive signals that CISA is seeing a faster exploitation timeline for newly disclosed vulnerabilities and is compressing the remediation windows accordingly. For utilities that rely on quarterly patching cycles or annual IT reviews, this is a direct warning: the adversary is moving faster than your patch schedule.

🟡 [ACTIVE THREAT INTEL] AI-Accelerated Vulnerability Discovery: Anthropic's Mythos-Class AI and What It Means for Water Sector Defenders

Published June 11, 2026. WaterISAC (Member Login Required) posted a TLP:CLEAR analysis on Anthropic's release of Claude Fable 5, a "Mythos-class" AI system with significantly enhanced capabilities for code analysis and vulnerability discovery. The operational significance for water utilities is straightforward: advanced AI models are now capable of finding exploitable flaws in software — including SCADA platforms, HMI applications, and embedded device firmware — at a pace that far exceeds human researcher capacity. This means the window between a vulnerability existing and a working exploit appearing in the wild is shrinking. For utilities running legacy or unpatched OT systems, the risk calculus just changed. Vulnerabilities that might have gone unnoticed for years can now be surfaced in hours.

🟠 [CRITICAL VULNERABILITY] CISA Adds Google Chromium V8 Exploit to KEV Catalog (CVE-2026-11645)

Published June 9, 2026. CISA added CVE-2026-11645, a Google Chromium V8 out-of-bounds read and write vulnerability, to the Known Exploited Vulnerabilities catalog. This is actively exploited. Chrome and Chromium-based browsers (including Microsoft Edge) are the default web browser on virtually every Windows workstation in a utility environment — including SCADA operator stations, engineering laptops, and administrative PCs that access web-based HMIs, historian dashboards, and cloud-hosted billing platforms. An attacker exploiting this flaw through a malicious or compromised website can achieve code execution on the workstation, potentially gaining a foothold to pivot into the OT network.

🟠 [CRITICAL VULNERABILITY] CISA Adds Cisco Catalyst SD-WAN Manager Vulnerability to KEV Catalog (CVE-2026-20245)

Published June 9, 2026. CISA added CVE-2026-20245, a Cisco Catalyst SD-WAN Manager improper encoding or escaping of output vulnerability, to the KEV catalog. Cisco SD-WAN is deployed by water utilities — particularly mid-size and larger systems — to connect remote pump stations, tank sites, and treatment facilities back to the central operations network. If an attacker compromises the SD-WAN management interface, they can potentially manipulate network routing, intercept SCADA traffic between sites, or sever connectivity to remote facilities entirely. This is a direct threat to the IT/OT bridge.

🟠 [CRITICAL VULNERABILITY] CISA Adds Ivanti Sentry OS Command Injection to KEV Catalog (CVE-2026-10520)

Published June 11, 2026. CISA added CVE-2026-10520, an Ivanti Sentry OS command injection vulnerability, to the KEV catalog. Ivanti Sentry (formerly MobileIron Sentry) is a gateway product used to manage and secure mobile device access to backend systems. Any utility using Ivanti to manage mobile access for field crews — tablets for work orders, phones accessing SCADA dashboards remotely — has an actively exploited entry point into their network. Ivanti products have been repeatedly targeted by nation-state actors over the past two years.

🟠 [CRITICAL VULNERABILITY] CISA Adds Check Point Security Gateway Improper Authentication to KEV Catalog (CVE-2026-50751)

Published June 8, 2026. CISA added CVE-2026-50751, a Check Point Security Gateway improper authentication vulnerability, to the KEV catalog. Check Point firewalls and VPN gateways are deployed at water utilities as perimeter security devices. An authentication bypass on a perimeter firewall is about as bad as it gets — it is the front door to your network. If you run Check Point, this is an emergency-priority patch.

🔴 [REGULATORY MANDATE] AWIA Deadline: 16 Days Remaining for June 30, 2026 Certifications

The AWIA recertification deadlines are now imminent:

Certification must be submitted through EPA's formal webform — not by email, not by phone call. If you have not started, contact EPA's free Cybersecurity Technical Assistance Program immediately.

🔒 PREMIUM TIER BOUNDARY In our standard free dispatch, the briefing concludes here. The following sections—The Action Plan, The KEV Compliance Checklist, The Tabletop Exercise, and the physical Attestation Log—are strictly reserved for Premium Subscribers. We have fully unlocked this Version 1.16 edition to demonstrate the exact, audit-ready intelligence our members use every week to secure their facilities and maintain regulatory compliance.

🟡 [ACTIVE THREAT INTEL] Responding to BOD 26-04 and the AI-Accelerated Threat Landscape

The combination of CISA's compressed vulnerability prioritization timeline (BOD 26-04) and the emergence of AI-accelerated exploit development means your patching cadence must tighten. Here is what to hand your IT contractor:

☐ Move from quarterly to monthly patch reviews at minimum. For internet-facing systems (firewalls, VPN gateways, remote access tools), move to weekly review of the CISA KEV catalog.

☐ Subscribe to CISA KEV catalog email alerts at CISA Subscriptions — they are free. Have your IT contractor or MSP confirm they receive them.

☐ Inventory every internet-facing device and service in your environment: firewalls, VPN concentrators, remote desktop gateways, web-based HMIs, cloud portals. If it touches the internet, it goes on the list.

☐ For each item on that list, confirm the current firmware/software version and compare it against the vendor's latest security advisory. Document the result.

☐ If you cannot patch a system within 14 days of a KEV listing, implement compensating controls: restrict access to the management interface by IP allowlist, disable the service if not essential, or isolate the device behind an additional layer of access control.

☐ Request a free vulnerability assessment from CISA or EPA. EPA's Cybersecurity Evaluation Program will assess your environment at no cost.

🟠 [CRITICAL VULNERABILITY] Patching Google Chrome / Chromium V8 (CVE-2026-11645)

☐ Immediately update Google Chrome and Microsoft Edge to the latest version on every workstation in your environment — SCADA operator stations, engineering laptops, administrative PCs. This is a free update. Open Chrome, click the three dots > Help > About Google Chrome, and confirm it is current.

☐ Enable automatic browser updates if not already configured. In a managed environment, push the update via group policy or your RMM tool.

☐ On SCADA workstations that use Chromium-based browsers to access web HMIs, verify the update does not break HMI functionality in a test environment before rolling out if possible. If testing is not feasible, update anyway — the risk of exploitation outweighs the risk of minor UI issues.

☐ Restrict general web browsing on SCADA workstations entirely. These machines should only access approved URLs (your HMI, historian, vendor portal). Use browser group policy or a local hosts file to block all other traffic.

☐ If you cannot update immediately, consider temporarily switching SCADA workstations to an offline mode where no browser-based internet access is permitted.

🟠 [CRITICAL VULNERABILITY] Mitigating Cisco Catalyst SD-WAN Manager (CVE-2026-20245)

☐ Confirm whether your network uses Cisco Catalyst SD-WAN Manager (formerly Viptela vManage). If your IT contractor or MSP manages your WAN, ask them directly.

☐ If deployed, apply the vendor patch immediately. Check the Cisco Security Advisory portal for the specific fix.

☐ Restrict access to the SD-WAN management interface. It should not be accessible from the general internet. Limit access to specific management VLANs or jump hosts only.

☐ Enable MFA on all SD-WAN management accounts. Remove any default or shared credentials.

☐ Review SD-WAN controller logs for any unauthorized configuration changes or unexpected administrative logins in the past 30 days.

☐ Consider temporarily isolating the SD-WAN management plane from the production data plane until the patch is verified. Your IT contractor can evaluate whether this is feasible without disrupting site connectivity.

🟠 [CRITICAL VULNERABILITY] Mitigating Ivanti Sentry (CVE-2026-10520)

☐ Determine if your utility uses Ivanti Sentry (formerly MobileIron Sentry) for mobile device management or mobile gateway access. This is commonly deployed to let field crews securely access backend systems from tablets or phones.

☐ If deployed, apply the Ivanti security update immediately.

☐ If you cannot patch immediately, disable external access to the Ivanti Sentry administrative portal. Restrict it to internal management networks only.

☐ Review Sentry logs for any OS command injection attempts — look for unusual characters or command strings in input fields.

☐ Ivanti products have been heavily targeted by nation-state actors. If you find evidence of compromise, report immediately to CISA at https://www.cisa.gov/report. Under CIRCIA, the 72-hour reporting clock begins the moment a covered entity "reasonably believes" a qualifying cyber incident has occurred. Ransomware payments must be reported within 24 hours.

🟠 [CRITICAL VULNERABILITY] Mitigating Check Point Security Gateway (CVE-2026-50751)

☐ Determine if your perimeter firewall or VPN is a Check Point Security Gateway. If your IT contractor manages your firewall, contact them today — not next week.

☐ Apply the Check Point hotfix immediately. An authentication bypass on your perimeter firewall means an attacker does not need credentials to get in.

☐ While awaiting the patch, disable any VPN or remote access portal features on the Check Point gateway that are not actively required. Reducing the attack surface is the fastest compensating control.

☐ Audit VPN user accounts. Remove any accounts that are no longer active. Enforce MFA on all remaining accounts.

☐ Review firewall logs for the past 30 days for any unusual authentication events, failed logins from unexpected IPs, or successful logins from geographic locations where your staff do not operate.

🔴 [REGULATORY MANDATE] AWIA Certification — Final Push

☐ If you have not yet submitted your AWIA certification through EPA's webform, do it this week. Do not wait until June 30.

☐ Confirm your RRA/ERP documents include cybersecurity risk scenarios, as EPA has made clear that cyber is expected to be addressed in both assessments and emergency response plans.

☐ If you need technical assistance, register with EPA's free Cybersecurity Technical Assistance Program. Do not attempt to call — it requires formal webform registration.

☐ Brief your utility executive or board this week on the deadline status. If the certification is not submitted by June 30, document exactly why and what steps are being taken — this creates an audit trail demonstrating good faith effort in the event of an EPA inquiry.

The following KEV entries from the past 7 days were not covered above and are listed for audit completeness. Entries that do not affect common water sector IT/OT infrastructure have been excluded.

No additional water-sector-relevant KEVs remain from the June 8–12, 2026 CISA KEV additions beyond those already addressed in THE ACTION PLAN above (CVE-2026-11645, CVE-2026-20245, CVE-2026-10520, CVE-2026-50751).

Standing Reminder: CISA and EPA offer free cybersecurity assessments and vulnerability scanning services to water and wastewater utilities. You do not need to hire an expensive consulting firm to get a baseline picture of your exposure. Register at EPA's Cybersecurity Evaluation Program or contact CISA directly at 1-844-Say-CISA.

Scenario: "The Browser You Didn't Patch"

It is 2:15 PM on a Tuesday. Your SCADA operator at the main water treatment plant opens a Chrome browser on the primary HMI workstation to check a vendor technical bulletin. The page has been compromised with a drive-by exploit targeting CVE-2026-11645 (Chromium V8 out-of-bounds write). Within seconds, a command-and-control beacon is established from the workstation to an external server. The attacker begins enumerating the network and discovers the workstation has direct Layer 2 access to your PLC subnet because the IT/OT network segmentation project was deferred last budget cycle. The attacker now has visibility into your process control network.

Discussion Questions:

☐ Your operator reports the browser "froze and then closed itself" about 20 minutes ago. The workstation seems to be running normally now. What is your immediate decision — do you pull the workstation offline, sever the PLC subnet, or continue monitoring? Who makes that call at your facility, and what is the documented escalation procedure?

☐ If you determine the PLC subnet may be compromised and decide to sever all digital control, can your operators run the treatment process manually for the next 12 hours? Who on today's shift knows how to perform manual chlorine dosing, and where are the laminated manual operations procedures stored?

☐ Under CIRCIA, the 72-hour reporting clock begins the moment your team "reasonably believes" a qualifying cyber incident has occurred. At what point in this scenario does that clock start — when the operator reports the browser crash, when your IT contractor confirms the C2 beacon, or when you discover the PLC subnet was accessible? What is your process for making that determination and initiating the report?

Subscribe to WaterISAC (Member Login Required) for daily threat intelligence tailored to water and wastewater utilities. CISA and EPA cybersecurity services referenced in this briefing are available at no cost to utilities of all sizes.

Stay secure and stay compliant,

The Reinforcefy Team

(To be completed by the designated facility manager or IT supervisor)

Briefing Issue: Vol. 1, Issue 12 | Date Reviewed: ........................

Actions Executed / IT Tickets Attached:

1. .................................................................

2. .................................................................

3. .................................................................

By signing below, I attest that I have reviewed this week’s intelligence briefing, delegated or completed the applicable technical remediations noted above, and attached the necessary supporting artifacts to this physical audit record.

Authorized Signature:

........................................................

Printed Name & Title:

........................................................