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Ivanti security advisory (AV26-897)
Canada's Cyber Centre relayed Ivanti's September 2026 security updates for Endpoint Manager Mobile, Neurons for ITSM, and Sentry, urging administrators to patch.
The Canadian Centre for Cyber Security forwarded Ivanti's September 2026 security updates covering Endpoint Manager Mobile, Neurons for ITSM (cloud/SaaS and on-prem), and Sentry. Affected releases include Endpoint Manager Mobile prior to 12.10.0.0, Sentry prior to R10.8.2, and Neurons for ITSM on-prem prior to 2026.2. The advisory references CVE-2026-18851 for Endpoint Manager Mobile and CVE-2026-83527 for Sentry, plus multiple CVEs in Neurons for ITSM. No exploitation is described in the advisory text.
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WatchGuard security advisory (AV26-847)
Canada's Cyber Centre advises that WatchGuard Agent versions before 1.25.13.0000 are affected by vulnerabilities and urges administrators to apply updates.
The Canadian Centre for Cyber Security relayed WatchGuard's advisory (AV26-847) noting that WatchGuard Agent prior to 1.25.13.0000 is affected by vulnerabilities. Users and administrators are encouraged to review the WatchGuard Endpoint Security Prime advisories and apply the available updates.
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Fortra security advisory (AV26-906)
Canada's Cyber Centre advises that Fortra GoAnywhere MFT Endpoint versions prior to 7.10.2 are affected by a path traversal vulnerability.
The Canadian Centre for Cyber Security issued advisory AV26-906 noting that Fortra GoAnywhere MFT Endpoint versions prior to 7.10.2 are affected by a path traversal vulnerability. The advisory was published September 10, 2026, referencing Fortra's own security advisory. No exploitation details or CVE id are provided; administrators are urged to review the links and apply the 7.10.2 update.
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Best Practices for Good Endpoint Hardening | Huntress
Huntress outlines endpoint hardening best practices, citing exposed RDP, RMM tool abuse, and ClickFix social engineering as common SMB intrusion paths.
Huntress published defensive guidance on endpoint hardening for small and mid-sized businesses, drawing on observations from its SOC. The post describes common intrusion vectors: internet-exposed RDP brute-forced by automated scanners, phishing emails delivering attacker-controlled remote monitoring and management (RMM) tools, with Huntress reporting a 277% spike in RMM abuse in 2025, and ClickFix attacks using fake CAPTCHA pages that trick users into running malicious commands. Recommended controls include scanning for exposed RDP, SSH, and VPN interfaces, removing unneeded local admin rights, enabling Windows Defender tamper protection, disabling SMBv1, and standardizing on one approved remote access tool, guided by CIS and NIST frameworks.
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CISA Red Team Compromised Two Critical Infrastructure Orgs, One Detected Nothing
CISA red teams fully compromised two critical infrastructure orgs with similar tradecraft; one detected nothing, the other contained phishing within minutes.
CISA advisory AA26-237A, 'A Tale of Two SOCs,' describes two simultaneous red team assessments of a Government Services organization and a Water and Wastewater Systems organization, both compromised to the domain level. Organization A never detected the intrusion, enabled by default credentials, a misconfigured AD CS template (ESC1), cleartext credentials, non-expiring static AWS keys, and over-permissioned Entra ID applications. Organization B detected and isolated phishing within 2-20 minutes, though the red team still reached krbtgt via DCSync from cleartext SCCM credentials. CISA attributes the outcome gap to people and processes rather than the security tools themselves.
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Water sector passes, government sector fails attempts to spot and halt simulated CISA attack
CISA red teamers compromised both a government and a water organization; water defenders detected and contained the simulated attack, government defenders did not.
CISA's red team gained initial access, elevated domain privileges, and lateral movement into sensitive business systems and cloud resources at an unnamed government organization, whose SOC ignored low- and medium-severity EDR alerts buried under thousands of false positives. A water organization's SOC quarantined phishing-compromised workstations within 2, 10, and 20 minutes, and later detected and isolated intrusions reaching the OT DMZ bastion host. Both organizations underestimated cloud risk, lacked Microsoft Conditional Access for workload identities, and had no process to revoke compromised access and refresh tokens. This is one of CISA's rare public red-team reports since 2023.
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NIST Issues New Guidance to Protect SSO and API Tokens From Theft and Forgery
NIST released IR 8587 giving agencies and cloud providers recommendations to prevent identity token forgery, theft, and misuse in SSO and API environments.
NIST Internal Report 8587, released September 15, 2026, provides implementation recommendations covering token creation, signing, validation, storage, revocation, and lifecycle management for SAML, OpenID Connect, and OAuth 2.0 environments. It builds on SP 800-53 Rev. 5.1.1 and incorporates lessons from breaches involving stolen signing keys, abused OAuth applications, and replayed federated assertions. Recommendations include strong signing algorithms, strict claim validation, short token lifetimes, token binding, leakage prevention, and monitoring for abnormal token use.
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ST Engineering iDirect iQ-Series Terminals (Update A)
CISA advisory details four flaws in ST Engineering iDirect iQ-Series VSAT terminals <=4.5.2.1, enabling device data theft, CSRF-driven reboots, and local privilege escalation.
CISA's Update A to ICSA-26-183-01 covers ST Engineering iDirect iQ-Series, 3315-Series and 9-Series terminals at firmware <=4.5.2.1, deployed across communications, defense, energy and transportation. CVE-2026-38059 exposes unauthenticated /api/identity and /api/ endpoints leaking serial number, DID, TPK, MAC address and firmware version, potentially enabling terminal impersonation; CVE-2026-38057 is a CSRF flaw letting an attacker force terminal reboots and satellite link loss via /api/reboot. CVE-2026-38056 enables local privilege escalation using the factory-configured technician account (CVSS 3.1 8.8, CVSS 4.0 9.4), and CVE-2026-38058 exposes crackable MD5-crypt root password hashes. All four flaws were reported to CISA by Ahmed Alqahtani of Aramco.
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Microsoft Confirms Remote Desktop Services Might Stop Working Following Sept. 2026 Security Update
Microsoft's September 2026 Patch Tuesday updates (KB5124008) can break Remote Desktop Services, causing RDP failures and freezes across Windows clients and servers.
Microsoft confirmed its September 2026 security updates, including KB5124008 for Windows 11 24H2/25H2, introduced a reliability regression where RDP connections fail after several minutes and servers hang at the 'Please wait for the Remote Desktop Configuration' screen. MMC, RDS Licensing Diagnoser, File Explorer, and the Windows Update settings page may also stop responding. The issue affects Windows 10/11 clients and Windows Server 2012 through 2025; Microsoft marked it Mitigated on September 11 and is developing a permanent fix, with VM restart offered as a temporary workaround.
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[20260803] - Core - Inconsistent ACL checks for mutating webservice endpoints
Joomla fixes CVE-2026-71574, inconsistent ACL checks letting unauthorized users mutate data via webservice APIs, in CMS 5.4.8/6.1.3.
Joomla disclosed an inconsistent access control flaw (CVE-2026-71574) in mutating webservice endpoints, where unauthorized users could perform mutations restricted in the backend UI; impact is rated high. It affects Joomla CMS 4.0.0-5.4.7 and 6.0.0-6.1.2, with moderate severity and low probability. The fix ships in Joomla 5.4.8 and 6.1.3 on 2026-08-18.
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[20260805] - Core - Improper ACL checks for category webservice endpoints
Joomla fixes CVE-2026-72532, an improper ACL check letting unauthorized users create categories via webservice endpoints, in CMS 5.4.8/6.1.3.
Joomla disclosed an incorrect access control flaw (CVE-2026-72532) in category webservice endpoints, allowing unauthorized users to create categories for inaccessible components. It affects Joomla CMS 4.0.0-5.4.7 and 6.0.0-6.1.2 and is rated moderate impact and severity with low probability. The fix ships in Joomla 5.4.8 and 6.1.3 on 2026-08-18; it was reported by Amin Isayev and Geo.
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[20260804] - Core - Improper ACL checks for custom fields webservice endpoints
Joomla patches CVE-2026-72531, an improper ACL check allowing unauthorized custom-field creation via webservice endpoints, in CMS 5.4.8/6.1.3.
Joomla disclosed an incorrect access control issue (CVE-2026-72531) letting unauthorized users create custom fields for inaccessible components through webservice endpoints. It affects Joomla CMS 4.0.0-5.4.7 and 6.0.0-6.1.2, rated moderate impact and severity with low probability. Fixed in Joomla 5.4.8 and 6.1.3; reported by ebadfd on 2026-07-06.
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