STONE-KNIGHT SECURITY

Threat actors are continuing to exploit a critical Langflow vulnerability as part of fresh attacks designed to deliver a Monero cryptocurrency miner. The activity has been found to weaponize CVE-2026-33017 (CVSS score: 9.3), an unauthenticated remote code execution (RCE) vulnerability in Langflow, indicating threat…

The Microsoft Defender vulnerability CVE-2026-33825 was exploited in the wild as a zero-day before patches were released. The post BlueHammer Vulnerability Exploited in Ransomware Attacks appeared first on SecurityWeek .

The infostealer was delivered via CVE-2026-48558, a critical authentication bypass vulnerability in SimpleHelp, targeting credentials linking development and admin environments to wider enterprise systems.

Added to KEV 2026-06-29. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-25. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-25. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-23. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-23. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-23. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-23. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-18. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-16. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-15. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-15. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-12. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-11. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Microsoft today released software updates to plug nearly 200 security holes across its Windows operating systems and supported software, a record number of fixes for the company's monthly Patch Tuesday cycle. Nearly three dozen of those bugs earned Microsoft's most dire "critical" rating, and exploit code for at…

Added to KEV 2026-06-09. Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. by 2026-06-23. Google Chromium V8 out-of-bounds read and write vulnerability that could allow a remote attacker to execute…

Hackers were seen making over 81 million login attempts originating from systems associated with hosting provider LSHIY. The post Massive Password Spray Campaign Targeting Azure CLI appeared first on SecurityWeek .

Adobe has released security patches for seven maximum-severity vulnerabilities in the ColdFusion web app development platform and the Campaign Classic marketing automation platform. [...]

Large language models keep inventing web addresses that do not exist. Attackers have started buying those made-up domains before anyone else can, then hosting phishing pages on them to catch traffic that AI tools point their way. Palo Alto Networks' Unit 42 calls the trick phantom squatting, and its new research…

ClickFix, the trick that fools people into running malware by hand, has quietly grown a back office. New research shows the malicious commands behind its fake "prove you're human" pages are now handed out by API-driven servers that give each visitor the same malware in a different disguise. The same research also…

The group compromised at least 10 regional organizations, including two state-owned entities, and deployed a new backdoor.

A campaign active since last November has been targeting Python developers building Telegram bots with trojanized Pyrogram forks that allow attackers to read arbitrary files on compromised servers. [...]

Separate but similar campaigns described by Microsoft and Trend Micro use malicious zip files to spread malware via social engineering and obsfucation, including blockchain abuse.

A new two-stage malware family called RustDuck is hijacking home routers, IP cameras, Android boxes, and poorly secured servers, then stitching them into a network built to knock websites and online services offline. Researchers at QiAnXin's XLab have tracked it since February 2026, and say the real story is not how…

Cybersecurity researchers have flagged an active browser extension campaign that is designed to steal cryptocurrency by stealthily replacing wallet addresses when unsuspecting users initiate a transaction. The cryptocurrency clipper activity has been codenamed Silent Swap by McAfee Labs. "The campaign is delivered…

Nation-state attackers breach water systems through weak passwords, exposed PLCs, and poor segmentation — not sophisticated malware.

For the past four years, a sprawling Android-based botnet called Popa has forced millions of consumer TV boxes to relay Internet traffic linked to advertising fraud, account takeovers, and mass data-scraping efforts. This week, researchers from multiple security firms concluded that the Popa botnet is linked to…

A cybercrime group known as The Gentlemen has emerged as the second most active ransomware gang by victim count, rapidly attracting a talented pool of hackers through an aggressive recruitment strategy that promises affiliates 90 percent of any ransom paid by victims. This post examines clues pointing to a real life…

Canadian authorities on Wednesday arrested a 23-year-old Ottawa man on suspicion of building and operating Kimwolf, a fast spreading Internet-of-Things botnet that enslaved millions of devices for use in a series of massive distributed denial-of-service (DDoS) attacks over the past six months. KrebsOnSecurity…

A new prompt injection attack dubbed "BioShocking" could trick AI-powered browsers into treating real-world risky actions as part of a fictional scenario, causing them to ignore any safety guardrails. [...]

Attackers don't need any special authentication to reach a target endpoint — they just need to know where it is.

New Microsoft research shows how attackers can hijack AI agents that act on a user's behalf, using nothing more than a poisoned tool description to make the agent quietly hand over company data to an outsider. The trick is that the agent never breaks a rule. Every step looks routine, so in a default setup no alarm…

Researchers tested 444 AI chatbot apps for iPhone and found that 282 of them, nearly two-thirds, exposed paid AI access through their network traffic. In many cases, the path in was visible just by watching what the app sent: a plaintext API key, a reusable token, or a backend server that accepted requests with no…

Hackers accessed the insurance giant’s policyholder portal multiple times between June 15 and June 25. The post Aflac Japan Data Breach Impacts 4.38 Million appeared first on SecurityWeek .

American insurance giant Aflac has disclosed a new data breach after attackers breached its Japan subsidiary's systems and stole personal and bank account information of 4.38 million customers. [...]

Lawmakers in both houses of Congress are demanding answers from the U.S. Cybersecurity & Infrastructure Security Agency (CISA) after KrebsOnSecurity reported this week that a CISA contractor intentionally published AWS GovCloud keys and a vast trove of other agency secrets on a public GitHub account. The inquiry…

Until this past weekend, a contractor for the Cybersecurity & Infrastructure Security Agency (CISA) maintained a public GitHub repository that exposed credentials to several highly privileged AWS GovCloud accounts and a large number of internal CISA systems. Security experts said the public archive included files…

Microsoft has fixed the GIF functionality in the Emoji Panel for Windows 11 and Windows Server users after the provider shut down its service. [...]

From model selection and automation to validation and measurable results, the right questions can help enterprises separate genuine AI capabilities from marketing hype. The post Frontier AI: Six Questions Every Enterprise Should Ask Security Vendors appeared first on SecurityWeek .

The U.S. Federal Trade Commission (FTC) says Amazon will pay a $2.25 million civil penalty to settle charges that it blocked identity theft victims' access to transaction records. [...]

The updates fix vulnerabilities in WebKit, the kernel, WebRTC, Web Extensions, and other components affecting iPhone, iPad, Mac, and Safari users. The post Apple Patches Dozens of Vulnerabilities Across iOS, macOS, and Safari appeared first on SecurityWeek .

The company has publicly launched its solution to help organizations design, build, and operate secure cloud systems. The post Dawnguard Raises $6.3 Million for Security Architecture Automation Platform appeared first on SecurityWeek .

Anthropic is putting Claude Fable 5 back online worldwide. On June 30, the U.S. Commerce Department lifted the export controls it had imposed on Fable and its more tightly controlled sibling Mythos 5 about two and a half weeks earlier. Fable 5 returns to users on Wednesday, July 1, across Claude.ai, the Claude…

Fifteen of the newly patched flaws have been rated ‘critical’ and 67 have been rated ‘high severity’. The post Google Patches 382 Chrome Vulnerabilities appeared first on SecurityWeek .

Cybersecurity researchers have warned of a "massive, ongoing, automated password spray attack" aimed at Microsoft's Azure command-line interface (CLI), compromising dozens of accounts in the process. The activity, per Huntress, originates from an IPv6 address range (2a0a:d683::/32) controlled by internet…

Citrix on Tuesday released security updates to address multiple flaws in NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway) that could be exploited by an attacker to facilitate arbitrary file reads or trigger a denial-of-service (DoS) condition. The vulnerabilities are listed below -…

Anthropic has confirmed that the Department of Commerce has lifted export controls on Claude's two most powerful models, Fable 5 and Mythos 5. [...]

Anthropic is now rolling out Sonnet 5, and it's almost as good as the Opus range, but it is designed to be cheaper than the company's flagship model. [...]

"Agentjacking" is the latest demonstration of how easily attackers can exploit an AI agent's inability to differentiate between content and instructions.

Microsoft announced today that it is accelerating its quantum-safe security roadmap, saying advances in quantum computing are bringing the need to replace today's encryption standards sooner than previously expected. [...]

As AI reshapes cybersecurity workflows, John Paul Cunningham, CISO at SIlverfort, says the technology is creating opportunities rather than eliminating jobs — and there are more ways than ever to break into the essential field.

CIA Director John Ratcliffe said artificial intelligence capabilities are "akin to digital nuclear weapons.”

The Kids Internet and Digital Safety (KIDS) Act passed with bipartisan support by a 267-117 margin, winning the two-thirds majority needed to greenlight the legislation under a process that speeds up a bill’s path to a vote but requires more than a simple majority.

A malicious extension in the Chrome Web Store is masquerading as the Perplexity AI answer engine, intercepting search traffic and collecting browsing information. [...]

The safety check that is supposed to stop an AI coding agent from running a dangerous command can be walked straight past using a shell trick that has been public for decades. New research from Adversa AI, which is named the bypass GuardFall, found it works against ten of the eleven popular open-source coding and…