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Bleeping Computer
Multiple ASUS router models are vulnerable to the Russia-linked Cyclops Blink malware threat, causing the vendor to publish an advisory with mitigations for the security risk. [...]
ZDNet Security
Multiple organisations have called for the federal government to clarify how it would go about installing cyber attack management software onto critical infrastructure systems.
The Register
Knights depart Chinese mega-corp's round table Multiple reports have surfaced claiming that two members of Huawei's UK board have resigned over the company's stance – or lack thereof – on Russia's illegal invasion of the Ukraine.…
The Hacker News
Multiple security vulnerabilities have been disclosed in Canonical's Snap software packaging and deployment system, the most critical of which can be exploited to escalate privilege to gain root privileges. Snaps are self-contained application packages that are designed to work on operating systems that use the Linux kernel and can be installed using a tool called snapd. Tracked
ZDNet Security
Multiple groups are urging the IRS to stop its use of facial recognition software.
ThreatPost
Multiple malicious installers were delivering the same Purple Fox rootkit version using the same attack chain, possibly distributed via email or phishing sites.
The Hacker News
Multiple backdoors have been discovered during a penetration test in the firmware of a widely used voice over Internet Protocol (VoIP) appliance from Auerswald, a German telecommunications hardware manufacturer, that could be abused to gain full administrative access to the devices. "Two backdoor passwords were found in the firmware of the COMpact 5500R PBX," researchers from RedTeam Pentesting
Bleeping Computer
Microsoft is investigating a widespread outage affecting multiple Microsoft 365 services, including Outlook, Microsoft Teams, and Copilot, as users report connectivity problems worldwide. [...]
The Hacker News
Citrix has released patches for multiple critical security flaws impacting NetScaler ADC, Citrix NetScaler Gateway, and NetScaler Console that could lead to denial-of-service (DoS) or an authentication bypass. The critical vulnerabilities that impact NetScaler ADC and NetScaler Gateway are listed below - CVE-2026-120868 (CVSS score: 9.3) - A memory overflow vulnerability in Packet
CISA advisories
View CSAF Summary On October 21, 2026, the Node.js project released security updates addressing a critical vulnerability in the Brotli decoder bundled with Node.js, commonly referred to as "Node2Shell" (tracked as CVE-2026-111497). The vulnerability is an out-of-bounds write that could allow a remote attacker to cause memory corruption and potentially execute arbitrary code. This advisory covers the status of impact of various Siemens software products. Siemens has released new versions for the affected products and recommends to update to the latest versions. The following versions of Siemens Desigo, Gridscale are affected: Desigo CC family V8 vers:all/* (CVE-2026-111497) Desigo CC family V9 vers:all/* (CVE-2026-111497) Gridscale X DSA vers:intdot/>=5.3|<5.4 (CVE-2026-111497) Gridscale X PSS®E vers:intdot/<36.8.0 (CVE-2026-111497) CVSS Vendor Equipment v3 9.8 Siemens Desigo CC family V8 1 Vulnerability Out-of-bounds Write Background Critical Infrastructure Sectors: Critical Manufacturing, Energy, Information Technology Countries/Areas Deployed: Worldwide Company Headquarters Location: Germany Vulnerabilities CVE-2026-111497 A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause a denial of service, or potentially execute arbitrary code using a crafted Brotli-compressed stream. Users need to update any Brotli libraries or binaries between 1.0.3 through 1.2.0 to the latest available version: 1.0.10 or 1.1.1 or 1.2.1. Read More 4 Affected Products Desigo CC family V8 Product Status: known_affected, known_not_affected Remediations Vendor fixInstall the latest .NET security updates via Windows Update. Desigo CC family V9 Product Status: known_affected, known_not_affected Remediations Vendor fixInstall the latest .NET security updates via Windows Update. Gridscale X DSA >= V5.3 < V5.4 Product Status: known_affected, known_not_affected Remediations Vendor fixUpdate to V5.4 or later version Gridscale X PSS®E < V36.8.0 Product Status: known_affected, known_not_affected Remediations Vendor fixUpdate to V36.8.0 or later version Additional Metrics Relevant CWE: CWE-787 Out-of-bounds Write CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H View CVE Details Acknowledgments Siemens ProductCERT reported this vulnerability to CISA. General Recommendations Operators of critical power systems (e.g. TSOs or DSOs) worldwide are usually required by regulations to build resilience into the power grids by applying multi-level redundant secondary protection schemes. It is therefore recommended that the operators check whether appropriate resilient protection measures are in place. The risk of cyber incidents impacting the grid's reliability can thus be minimized by virtue of the grid design. Siemens strongly recommends applying the provided security updates using the corresponding tooling and documented procedures made available with the product. If supported by the product, an automated means to apply the security updates across multiple product instances may be used. Siemens strongly recommends prior validation of any security update before being applied, and supervision by trained staff of the update process in the target environment. As a general security measure Siemens strongly recommends to protect network access with appropriate mechanisms (e.g. firewalls, segmentation, VPN). It is advised to configure the environment according to our operational guidelines in order to run the devices in a protected IT environment. Recommended security guidelines can be found at: https://www.siemens.com/gridsecurity Additional Resources For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories Terms of Use The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use. Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. 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. Advisory Conversion Disclaimer This ICSA is a verbatim republication of Siemens ProductCERT SSA-045512 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact Siemens ProductCERT directly for any questions regarding this advisory. Revision History Initial Release Date: 2026-10-30 Date Revision Summary 2026-10-30 1 Publication Date 2026-11-04 2 Added Desigo CC to the affected products list. 2026-11-06 3 Added Gridscale X DSA and PSSE to the list of affected products 2026-11-12 4 Initial CISA Republication of Siemens ProductCERT SSA-045512 advisory Legal Notice and Terms of Use