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CVE-2026-94384 - Missing Authorization in AmazonConnectSalesforceLambda sfExecuteAWSService

Bulletin ID: 2026-115-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 09/22/2026 10:00 AM PDT Description: Amazon Connect Salesforce Lambda (AmazonConnectSalesforceLambda) is a Serverless Application Repository application that provides Lambda functions for integrating Amazon Connect with Salesforce. We identified CVE-2026-94384, a missing authorization issue in the sfExecuteAWSService Lambda function, which is used only during initial setup. The function dispatche…

Microsoft Takes Down EvilTokens Device-Code Phishing Service Tied to 12,000 Inbox Compromises

Microsoft on Tuesday announced the takedown of the EvilTokens device code phishing service that it said used artificial intelligence (AI) "at every step of the attack chain." The action, carried out with authorization from the U.S. District Court for the Eastern District of Virginia, involved the efforts of Health-ISAC, alongside Cloudflare, Coinbase, OpenAI, Railway, SpyCloud, The Shadowserver

2026-013: Critical Vulnerability in F5 BIG-IP APM

On 22 September 2026, F5 published an advisory addressing a critical vulnerability affecting its BIG-IP APM product. The vendor confirmed active exploitation in the wild. CERT-EU recommends taking appropriate actions as soon as possible.

Critical Bifrost AI Gateway Flaw Lets Attackers Run Commands Without Credentials

A critical vulnerability in Bifrost, an open-source AI gateway that routes requests to more than 20 LLM providers, allows an unauthenticated attacker to run arbitrary commands on the gateway server with a single HTTP request. The flaw, tracked as CVE-2026-90898 (CVSS score: 9.8), affects all versions of the Bifrost HTTP transport before 2.1.0 when management authentication is

Researcher Drops BigDiskBuster Zero-Day PoC That Blocks Microsoft Defender Updates

A zero-day proof-of-concept tool that stops Microsoft Defender from installing platform and signature updates by filling all available disk space was published on GitHub on September 19. The tool, called BigDiskBuster, has no patch, no CVE, and no Microsoft advisory. Its author, Abdelhamid Naceri, is a former Microsoft security researcher whose earlier Defender exploits were used in

Fighting AI Slop in Production Codebases: How Huntress Improved Fable 5.1’s API Recall

Three changes to the Huntress coding harnesses doubled Claude Fable 5.1’s API recall evaluation accuracy rate.

Two arrested in UK after Microsoft takedown of ‘Eviltokens’ AI-chatbot for cybercriminals

Available on Telegram for a $1,500 initiation fee and a recurring monthly $500 subscription, EvilTokens provided cybercriminals with artificial intelligence tools enabling them to compromise accounts, analyze breached inboxes and find the best methods for monetizing their access through fraud.

Unmasking EvilTokens: Getting to the root of device code phishing

EvilTokens has quickly become one of the top PhaaS platforms, enabling device code phishing attacks through AI-assisted lures, automated infrastructure, and token theft. In collaboration with partners, Microsoft Digital Crimes Unit (DCU) facilitated a disruption of EvilTokens infrastructure and operations. The post Unmasking EvilTokens: Getting to the root of device code phishing appeared first on Microsoft Security Blog.

EvilTokens PhaaS disrupted after compromising 12,000 Microsoft accounts

The EvilTokens platform that compromised more than 12,000 Microsoft accounts at over 10,000 organizations has been disrupted in an effort led by Microsoft's Digital Crimes Unit (DCU). [...]

Cyera Raises $400 Million at $12+ Billion Valuation

The data security company received the new investment from Goldman Sachs Alternatives, extending its Series G funding round. The post Cyera Raises $400 Million at $12+ Billion Valuation appeared first on SecurityWeek.

Chaotic Eclipse Released BigDiskBuster, A PoC For Windows Defender Update DoS Zero-Day

The researcher Chaotic Eclipse released BigDiskBuster, a PoC exploit for a Windows Defender Update DoS Zero-Day vulnerability. Security researcher Chaotic Eclipse, also known as INFINITE NIGHTMARE, MSNightmare and Nightmare-Eclipse, released a new zero-day exploit targeting Microsoft Defender. The researcher named the exploit BigDiskBuster, it triggers a Denial of Service Vulnerability in Windows Defender Update. The security researcher […]

AI Attacks Move Faster. Huntress’ Agentic SOC Keeps Up

AI hasn't changed attacker tradecraft, just the speed. See how Huntress built Athena, an agentic SOC partner, to help analysts keep pace.

Nightmare Eclipse Drops New Microsoft Defender Exploit After Revealing Identity

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.

LausivLoader analysis, or how to pass data between malware stages, (Thu, Sep 17th)

At the end of August, a malspam message was caught in the quarantine of a mail gateway operated by one of my customers. The message was not especially remarkable – it asked the recipient to review some attached requirements and provide a price quotation for a fiber optic system and appeared to impersonate an employee of a legitimate company.

AI is set to help cyber attackers much more than defenders, says UK official

Dave Chismon, the NCSC’s chief technology officer for architecture, said in a blog post that the imbalance in AI means cyberattacks would likely grow as automated defenses struggle to keep pace.

Russia's internet shutdowns disrupt warnings about incoming drone attacks

Russia’s growing restrictions on mobile internet and cellular service are making it harder for people to receive warnings about incoming Ukrainian drone and missile attacks.

Webinar tomorrow: Inside real-world Google Workspace breaches

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 warns of max severity zero-day bug in DIR-822A routers

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. [...]

AI Agents Are Rewriting the Rules of Lateral Movement

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

New CVSS 10.0 VeloCloud Orchestrator Flaw Actively Exploited in Certificate-Based Setups

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

Only 13% of OT Network Segments Are Fully Isolated: Analysis

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.

More Than a Third of Industrial Orgs See Cybersecurity Risk as a Top Obstacle to Growth, Study Finds

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

Recent ZyXEL Switch Vulnerability Exploited by Chinese Hackers

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.

DORA Year Two: Can Your SOC Actually See the Attack?

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

New Linux Kernel Flaw Gives ARM64 KVM Guests Read-Write Access to Host Memory

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.

Malicious B-tree NPM Package Accumulates Millions of Downloads

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.

SharePoint Flaw Initially Listed as Spoofing by Microsoft Enables Authenticated RCE

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

Proofpoint Stops the Attacks Traditional Defenses Miss in the AI Era

Proofpoint Breaks Down the Divide Between Data Security and AI Security with the Industry’s First Unified Agentic System