Abdelhamid Naceri, a former Microsoft Germany employee, is the exploit leaker Nightmare Eclipse, aka Chaotic Eclipse.  The post Nightmare Eclipse Drops New Microsoft Defender Exploit After Revealing Identity appeared first on SecurityWeek.

Tomorrow's webinar examines real Google Workspace breaches involving social engineering and malicious OAuth applications, from initial access through the critical first hours of incident response. Learn which security controls and response decisions can make the greatest difference. [...]

D-Link warned customers of a maximum-severity vulnerability (CVE-2026-86296) with public proof-of-concept (PoC) exploit code and no patch, affecting legacy DIR-822A dual-band Wi-Fi routers. [...]

Security teams have spent decades asking whether an identity has too much access. AI agents raise a harder question: how can we determine which paths an autonomous system can discover, given the access it already has? A person may try several ways to complete a task. A deterministic application follows the flow its developer wrote. But an AI agent is relentless in its pursuit of done. In May

Attackers are exploiting a new flaw in on-premises VeloCloud Orchestrator (VCO), the server that manages the Edge devices in a VeloCloud SD-WAN, Arista said on September 22. The flaw, tracked as CVE-2026-93952, may allow a remote attacker with no login access to privilege internal functions and affect the VCO host. Only orchestrators set up to authenticate their Edges with certificates are

Forescout’s new network segmentation research shows that OT and medical devices often share network segments with other enterprise assets. The post Only 13% of OT Network Segments Are Fully Isolated: Analysis appeared first on SecurityWeek.

Industrial companies are increasing cybersecurity investment as connected operations, AI adoption, and IT/OT convergence expand operational risk.

View CSAF Summary Industrial Edge Management contains an authentication bypass vulnerability that could allow an unauthenticated remote attacker to perform full account takeover by resetting user credentials without completing email verification. Siemens has released new versions for the affected products and recommends to update to the latest versions. The following versions of Siemens Industrial Edge Management are affected: Industrial Edge Management Cloud vers:all/* (CVE-2026-18963) Industr

View CSAF Summary Successful exploitation of this vulnerability could allow an attacker to hijack session cookies and issue state-changing requests as an operator which would allow the attacker to control the programmable logic controller and the physical processes it drives. The following versions of OpenPLC Runtime v3 are affected: OpenPLC 3 (CVE-2026-88020) CVSS Vendor Equipment Vulnerabilities v3 6.1 Autonomy Logic OpenPLC Runtime v3 Improper Neutralization of Input During Web Page

View CSAF Summary Successful exploitation of this vulnerability could result in a system crash, a DoS, or memory corruption, which could lead to code execution on the victim system. The following versions of lwIP (Lightweight IP) are affected: API >=2.0.1|<=2.2.1 (CVE-2026-91018) CVSS Vendor Equipment Vulnerabilities v3 8.8 lwIP lwIP (Lightweight IP) Double Free Background Critical Infrastructure Sectors: Chemical, Communications, Critical Manufacturing, Energy, Financial Services

View CSAF Summary The products listed below contain a denial of service vulnerability that could allow an attacker to force the devices into protection mode under certain conditions. This disables remote connectivity functions (Web Access) to the devices. Siemens has released new versions for the affected products and recommends to update to the latest versions. The following versions of Siemens WTV676 and WTV776 are affected: WTV676-HB6035 Web Interface vers:intdot/<3.94 (CVE-2026-89207) WTV77

View CSAF Summary Multiple Siemens products are vulnerable to the "Copy Fail" vulnerability. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends specific countermeasures for products where fixes are not, or not yet available. The following versions of Siemens SIPLUS and SIMATIC Products are affected: SIMATIC AX Runtime Core Linux Common Debian vers:all/* (CVE-2026-31431) SIMATIC

View CSAF Summary A Client Code Execution (CCE) vulnerability has been identified in Desigo CC, potentially allowing malicious actors to execute arbitrary code on client devices through specially crafted graphics documents. This vulnerability leverages user-defined graphics containing embedded scripts that are executed on client application instances. Successful exploitation could lead to compromise of the client operating system and potential lateral movement within the organization. The follow

View CSAF Summary SIMOVE Fleetmanager and SIPLANT contain a path traversal vulnerability that could allow an attacker to access files outside of intended scope. Siemens has released new versions for the affected products and recommends to update to the latest versions. The following versions of Siemens SIMOVE Fleetmanager and SIPLANT are affected: SIMOVE Fleetmanager V3.1 vers:intdot/<3.1.13 (CVE-2026-67367) SIMOVE Fleetmanager V3.2 vers:intdot/<3.2.4 (CVE-2026-67367) SIMOVE Fleetmanager V3.3 v

View CSAF Summary A vulnerability has been identified in the Open Interface Services (OIS) web module affecting Siveillance Control and Siveillance Control Pro (versions OIS 3.x.y and OIS 4.x.y) . This vulnerability allows an attacker to upload arbitrary files, which can lead to unauthorized root-level access on the OIS server. Siemens has released patches and updates for Siveillance OIS to apply to the products that incorporate the OIS service, and recommends to update to the latest versions. T

View CSAF Summary Successful exploitation of this vulnerability could allow an attacker to gain full code execution on the device. The following versions of lwIP TCP/IP Stack MQTT Client Application are affected: MQTT Client Application >=2.0.1|<=2.2.1 (CVE-2026-87121) CVSS Vendor Equipment Vulnerabilities v3 9.8 lwIP lwIP TCP/IP Stack MQTT Client Application Out-of-bounds Write Background Critical Infrastructure Sectors: Chemical, Communications, Critical Manufacturing, Energy, F

CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-85102 Check Point Multiple Products Improper Certificate Validation Vulnerability CVE-2026-93616 Check Point Multiple Products Path Traversal Vulnerability CVE-2026-93952 Arista VeloCloud Orchestrator Improper Input Validation Vulnerability CVE-2026-94127 F5 BIG-IP APM Heap-based Buffer Overflow Vulnerability These types of vulnerabilities are a frequ

A Chinese threat actor has exploited the bug to exfiltrate sensitive information from nearly 1,000 ZyXEL switches. The post Recent ZyXEL Switch Vulnerability Exploited by Chinese Hackers appeared first on SecurityWeek.

When the Digital Operational Resilience Act (DORA) became enforceable across the European Union in January 2025, it triggered an administrative sprint. Financial entities spent the first year establishing risk governance, assessing third-party service providers, updating contract clauses, and documenting incident escalation workflows. Now in its second year, the harder part of DORA is

A new flaw in the Linux kernel's KVM virtualization code for ARM64 processors can leave a freed piece of host memory exposed to a guest virtual machine on hosts with nested virtualization enabled. The bug, tracked as CVE-2026-89775, allows a guest to read and write host kernel memory, and the researcher who found it says it can be used to escape the guest and run code on the host machine.

Posing as the legitimate sorted-btree package, indexed-btree hides a malware trigger in its prototype method. The post Malicious B-tree NPM Package Accumulates Millions of Downloads appeared first on SecurityWeek.

A SharePoint Server vulnerability that Microsoft initially classified as a spoofing flaw with a CVSS score of 6.5 actually enables authenticated remote code execution, according to full technical details published today by Viettel Cyber Security researcher Dinh Ho Anh Khoa. The flaw, CVE-2026-65660, affects SharePoint Server 2016, 2019, and Subscription Edition. Patches have been

The bug lets attackers automatically install and preview themes and could lead to remote code execution. The post WordPress Patches ‘Click2Shell’ Vulnerability appeared first on SecurityWeek.

Over the weekend, security researcher Abdelhamid Naceri (also known as Nightmare Eclipse) released another Microsoft Defender zero-day exploit that blocks antivirus updates. [...]

A malicious npm package named "indexed-btree" has been observed hiding its malicious behavior within application code rather than using lifecycle scripts, indicating that threat actors are likely shifting tactics in response to recent security controls. "Indexed-btree is a malicious npm package mimicking the legit sorted-btree package, an ordinary B-tree/indexing utility," Checkmarx said. "

​Attackers are now actively exploiting a high-severity vulnerability in Zyxel GS1900 series switches, according to the U.S. Cybersecurity and Infrastructure Security Agency (CISA). [...]

The US, Japan, Germany and Australia have published a joint report detailing the scope of North Korea’s WaterPlum campaign. The post Japan Dismantles First North Korean Laptop Farm as US and Allies Detail Wider Scheme appeared first on SecurityWeek.

The threat actor known as SideCopy has been observed using spear-phishing lures to target academic institutions in India, expanding their strategic focus beyond government entities. "SideCopy campaign operations typically initiate through spear-phishing campaigns that leverage the abuse of mshta.exe to execute malicious scripts and circumvent standard security protocols," Trellix researchers

Malware already running on a Mac can quietly take over Meta's Muse assistant and use the broad access its owner granted the app, security researcher Patrick Wardle has shown in a proof-of-concept released on September 21. It works by changing a hidden setting so that when the user taps the microphone and dictates a prompt, the words go to the attacker instead of Meta. The flaw is in

A new flaw in WordPress core let an anonymous visitor leave a comment that planted a hidden script on the page. If a logged-in administrator later opened that page, the script could run code on the site's server. WordPress fixed the flaw, tracked as CVE-2026-93485 and dubbed "Comment2Shell," on September 17 in version 7.1.1 and told site owners to update right away. There is