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The agency put foreign-made consumer routers on its list of prohibited communications devices, but the ban could create more problems down the road.

The Cybersecurity and Infrastructure Security Agency (CISA) is warning that hackers are actively exploiting a critical vulnerability identified as CVE-2026-33017, which affects the Langflow framework for building AI agents. [...]

Threats actors pounced on the code injection vulnerability within hours of its disclosure, demonstrating that organizations have little time to address critical bugs.

World Leaks is a cyber extortion operation that steals sensitive data from organizations and threatens to leak it via the dark web if a ransom is not paid. Read more in my article on the Fortra blog.

A long-term and ongoing campaign attributed to a China-nexus threat actor has embedded itself in telecom networks to conduct espionage against government networks. The strategic positioning activity, which involves implanting and maintaining stealthy access mechanisms within critical environments, has been attributed to Red Menshen, a threat cluster that's also tracked as Earth Bluecrow,

Security researchers from Georgia Tech have observed a surge in reported CVEs for which the flaw was introduced by AI-generated code

Attackers rapidly exploited a critical Oracle WebLogic RCE flaw the same day exploit code was released, according to a CloudSEK honeypot study

The United Kingdom's Foreign, Commonwealth and Development Office (FCDO) has sanctioned Xinbi, a Chinese-language cryptocurrency-based online marketplace that sells stolen data and satellite internet equipment to scam networks in Southeast Asia. [...]

Organizations repeatedly expose ports, reuse passwords, and skip patches, creating security gaps that attackers exploit for breaches. An industry veteran outlines ways to fix these common mistakes.

The holdings company says hackers stole names, Social Security numbers, and driver’s license numbers from its environment. The post Hightower Holding Data Breach Impacts 130,000 appeared first on SecurityWeek.

PwC Annual Threat Dynamics report says AI-threats are the biggest concern of clients

Most teams have security tools in place. Alerts are firing, dashboards look clean, threat intel is flowing in. On the surface, everything feels under control. But one question usually stays unanswered: Would your defenses actually stop a real attack? That’s where things get shaky. A control exists, so it’s assumed to work. A detection rule is active, so it’s expected to catch something. But very

Cybersecurity researchers have disclosed a vulnerability in Anthropic's Claude Google Chrome Extension that could have been exploited to trigger malicious prompts simply by visiting a web page. The flaw "allowed any website to silently inject prompts into that assistant as if the user wrote them," Koi Security researcher Oren Yomtov said in a report shared with The Hacker News. "No clicks, no

The Coruna exploit kit is an evolution of the framework used in the Operation Triangulation espionage campaign, which in 2023 targeted iPhones via zero-click iMessage exploits. [...]

Russian police arrested a Taganrog resident believed to be the owner of LeakBase, a major online forum used by cybercriminals to buy and sell stolen data and hacking tools. [...]

The high- and medium-severity flaws could lead to denial-of-service, secure boot bypass, information disclosure, and privilege escalation. The post Cisco Patches Multiple Vulnerabilities in IOS Software appeared first on SecurityWeek.

OpenAI’s Safety Bug Bounty program seeks to address AI safety vulnerabilities beyond traditional security flaws

Third-party resellers and brokers foil transparency efforts and allow spyware to spread despite government restrictions, a study finds.

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-33634 Aqua Security Trivy Embedded Malicious Code Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

View CSAF Summary Successful exploitation of this vulnerability could allow an attacker to achieve remote code execution. The following versions of PTC Windchill Product Lifecycle Management are affected: Windchill PDMLink 11.0_M030 (CVE-2026-4681) Windchill PDMLink 11.1_M020 (CVE-2026-4681) Windchill PDMLink 11.2.1.0 (CVE-2026-4681) Windchill PDMLink 12.0.2.0 (CVE-2026-4681) Windchill PDMLink 12.1.2.0 (CVE-2026-4681) Windchill PDMLink 13.0.2.0 (CVE-2026-4681) Windchill PDMLink 13.1.0.0 (CVE-2026-4681) Windchill PDMLink 13.1.1.0 (CVE-2026-4681) Windchill PDMLink 13.1.2.0 (CVE-2026-4681) Windchill PDMLink 13.1.3.0 (CVE-2026-4681) FlexPLM 11.0_M030 (CVE-2026-4681) FlexPLM 11.1_M020 (CVE-2026-4681) FlexPLM 11.2.1.0 (CVE-2026-4681) FlexPLM 12.0.0.0 (CVE-2026-4681) FlexPLM 12.0.2.0 (CVE-2026-4681) FlexPLM 12.0.3.0 (CVE-2026-4681) FlexPLM 12.1.2.0 (CVE-2026-4681) FlexPLM 12.1.3.0 (CVE-2026-4681) FlexPLM 13.0.2.0 (CVE-2026-4681) FlexPLM 13.0.3.0 (CVE-2026-4681) CVSS Vendor Equipment Vulnerabilities v3 10 PTC PTC Windchill Product Lifecycle Management Improper Control of Generation of Code ('Code Injection') Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-4681 A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill and PTC FlexPLM. The vulnerability may be exploited through the deserialization of untrusted data. This issue affects Windchill PDMLink: 11.0 M030, 11.1 M020, 11.2.1.0, 12.0.2.0, 12.1.2.0, 13.0.2.0, 13.1.0.0, 13.1.1.0, 13.1.2.0, 13.1.3.0; FlexPLM: 11.0 M030, 11.1 M020, 11.2.1.0, 12.0.0.0, 12.0.2.0, 12.0.3.0, 12.1.2.0, 12.1.3.0, 13.0.2.0, 13.0.3.0. View CVE Details Affected Products PTC Windchill Product Lifecycle Management Vendor: PTC Product Version: PTC Windchill PDMLink: 11.0_M030, PTC Windchill PDMLink: 11.1_M020, PTC Windchill PDMLink: 11.2.1.0, PTC Windchill PDMLink: 12.0.2.0, PTC Windchill PDMLink: 12.1.2.0, PTC Windchill PDMLink: 13.0.2.0, PTC Windchill PDMLink: 13.1.0.0, PTC Windchill PDMLink: 13.1.1.0, PTC Windchill PDMLink: 13.1.2.0, PTC Windchill PDMLink: 13.1.3.0, PTC FlexPLM: 11.0_M030, PTC FlexPLM: 11.1_M020, PTC FlexPLM: 11.2.1.0, PTC FlexPLM: 12.0.0.0, PTC FlexPLM: 12.0.2.0, PTC FlexPLM: 12.0.3.0, PTC FlexPLM: 12.1.2.0, PTC FlexPLM: 12.1.3.0, PTC FlexPLM: 13.0.2.0, PTC FlexPLM: 13.0.3.0 Product Status: known_affected Remediations Mitigation PTC is aware of the issue and is actively developing a fix. In the meantime, PTC recommends applying the recommended workaround. Until official patches are available, customers must take urgent steps to safeguard their environments. Specifically: Protect any publicly accessible Windchill systems Vendor fix While publicly accessible Windchill and FlexPLM systems are at higher risk and require immediate attention, PTC strongly recommends applying the mitigation steps to all deployments, regardless of Internet exposure Vendor fix Apply the same precautions to FlexPLM deployments Vendor fix The following Apache and IIS HTTP Server configuration update should be IMMEDIATELY applied to every Windchill or FlexPLM system: Customers using Apache HTTP Server should only follow "Apache HTTP Server Configuration – Workaround Steps" section steps Mitigation Customers using Microsoft IIS should only follow "IIS Configuration - Workaround Steps" section steps Mitigation Please explicitly note that the same mitigation steps must also be applied on File Server / Replica Server configurations where applicable Mitigation For Windchill releases prior to 11.0 M030, workarounds may need to be altered to apply to unsupported previous releases Mitigation For Apache HTTP Server and IIS configuration workaround steps, please refer to the official advisory at:https://www.ptc.com/en/about/trust-center/advisory-center/active-advisories/windchill-flexplm-critical-vulnerability. https://www.ptc.com/en/about/trust-center/advisory-center/active-advisories/windchill-flexplm-critical-vulnerability Mitigation If immediate remediation is not feasible, additional guidance and remediation options are available:https://www.ptc.com/en/about/trust-center/advisory-center/active-advisories/windchill-flexplm-critical-vulnerability. https://www.ptc.com/en/about/trust-center/advisory-center/active-advisories/windchill-flexplm-critical-vulnerability Relevant CWE: CWE-94 Improper Control of Generation of Code ('Code Injection') Metrics CVSS Version Base Score Base Severity Vector String 3.1 10 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H 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: 2026-03-26 Date Revision Summary 2026-03-26 1 Initial Republication of PTC's CS466318 Legal Notice and Terms of Use