STONE-KNIGHT SECURITY

BeyondTrust has released updates to address two critical security flaws affecting Remote Support (RS) and Privileged Remote Access (PRA) products that, if successfully exploited, could allow unauthenticated attackers to take control of susceptible devices. The vulnerabilities are listed below - CVE-2026-40138 (CVSS…

A use-after-free bug in Linux's KVM hypervisor can be triggered from a guest virtual machine to corrupt the shadow-page state of the host kernel that runs it. Dubbed 'Januscape' and tracked as CVE-2026-53359, the flaw sits in the shadow MMU code that KVM shares across both Intel and AMD. The public proof-of-concept…

Threat actors have been observed attempting to exploit a recently patched critical security flaw in Gitea Docker images, according to Sysdig. The vulnerability in question is CVE-2026-20896 (CVSS score: 9.8), a vulnerability that stems from the DevOps platform trusting the "X-WEBAUTH-USER" header from any source IP…

Attackers are now exploiting a maximum-severity Adobe ColdFusion vulnerability tracked as CVE-2026-48282, according to vulnerability intelligence company KEVIntel. [...]

After gaining a foothold in thousands of Fortinet firewalls, the attackers are starting to monetize that access, and are also piling on a Nextcloud zero-day bug.

Added to KEV 2026-07-01. 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 2026-06-29. 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…

A suspected China-aligned threat activity cluster has been observed exploiting Roundcube webmail software belonging to physics and engineering departments of U.S. and Canadian universities as part of a new campaign. The activity involves the exploitation of now-patched, critical security flaws in the open-source…

Several versions of firmware released by Chinese network device manufacturer Tenda have been found to embed an undocumented authentication backdoor that enables administrative access to the devices' web management interfaces, the CERT Coordination Center (CERT/CC) warned Monday. "An attacker can exploit this…

A threat group researchers call "Armored Likho" has gained access to government agencies and electrical power entities in Russia, Brazil, and Kazakhstan.

A ransomware-as-a-service gang, an online foreign extremist group and drug traffickers were separately the targets of offensive operations in 2025, according to Canada's Communications Security Establishment.

A phishing campaign is impersonating more than 30 well-known brands, including Adobe, Netflix, Coca-Cola, and OpenAI, in fake job interviews to steal Google account credentials from marketing professionals. [...]

Threat actors are abusing Microsoft Teams voice calls by impersonating corporate IT support staff to trick employees into installing the EtherRAT malware, giving attackers initial access to corporate networks. [...]

Securonix says the sophisticated framework abuses compromised websites, Blogspot, PowerShell, and fileless techniques to evade detection and deploy the PureLog information stealer. The post Blogspot-Hosted Payloads Delivered in ‘Veil#Drop’ Attacks appeared first on SecurityWeek .

An Iranian hacking group affiliated with Iran's Ministry of Intelligence and Security (MOIS) has been wielding a previously undocumented modular command-and-control (C2) framework dubbed Cavern (aka Cav3rn) targeting Israeli organizations. The activity, which has primarily singled out IT providers and government…

An "agentic threat actor" successfully exploited a Langflow flaw to steal data from a production database server and encrypt other systems.

The PolinRider campaign has compromised more than 100 legitimate open source packages and repositories to deliver a backdoor and information stealer to developers. The post North Korean Hackers Target Open Source Developers in Supply Chain Attacks appeared first on SecurityWeek .

A streaming box should not need a threat model. Neither should a username field, a demo repo, a reset flow, or a browser permission prompt. That is the irritating part this week: the risky pieces were ordinary. Home devices became a routing cover. Clean code pulled dirt from a dependency. Identity shortcuts aged…

A suspected China-nexus threat activity cluster has been observed targeting Indian taxpayers, tax professionals, and corporate finance teams to deliver a remote access trojan designed to steal sensitive data from compromised hosts. The multi-stage campaign, codenamed Operation DragonReturn by Seqrite Labs, involves…

Cybersecurity researchers have flagged a novel Java-based remote access trojan (RAT) called QuimaRAT that's capable of targeting Windows, Linux, and macOS environments. According to LevelBlue, the cross-platform malware is advertised under a malware-as-a-service (MaaS) model, costing anywhere between $150 for one…

Researchers identified what they believe is the first documented case of a ransomware operation, JadePuffer, conducted entirely by a large language model (LLM) agent. [...]

A new phishing-as-a-service (PhaaS) platform dubbed "ARToken" appears to operate as an affiliate of the EvilTokens phishing platform, giving researchers a glimpse into an extensive toolkit designed to compromise Microsoft 365. [...]

Attack demonstrates how LLM agents can combine known exploitation techniques with real-time reasoning to automate complex, multi-stage intrusions. The post Agentic AI Used to Conduct Ransomware Attack via Langflow appeared first on SecurityWeek .

The Federal Bureau of Investigation (FBI) said today it worked with industry partners to seize hundreds of domains associated with NetNut, a sprawling residential proxy service operated by the publicly-traded Israeli company Alarum Technologies [NASDAQ: ALAR]. The action comes roughly two weeks after KrebsOnSecurity…

The ransomware campaign relies on basic social engineering and stretches across multiple regions, including the US, Europe, Middle East, and elsewhere.

Attackers wasted little time targeting the latest memory disclosure flaw in Citrix's NetScaler products, after researchers published a proof-of-concept exploit (PoC).

Information like Social Security numbers and health-related data was accessed, but the company said it had “no evidence that impacted information has been publicly posted or exposed on the internet.”

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…

A top Ukrainian security official described two previously unreported attacks on TV media organizations and said Russia has ramped up hacking activities against the industry.

The 16-year-old Januscape flaw affects Linux's KVM hypervisor, allowing attackers to escape virtual machines and potentially execute code on the underlying host. The post Linux Kernel Vulnerability Allows VM Escape on Intel and AMD Systems appeared first on SecurityWeek .

Microsoft says the Windows settings backup and restore tool will be enabled by default on Microsoft Entra-joined or Microsoft Entra hybrid-joined enterprise systems after upgrading to Windows 11 26H2. [...]

The investment will accelerate Keyfactor's machine identity, PKI, and cryptographic security platform as enterprises prepare for AI-driven and post-quantum threats. The post Keyfactor Scores $1 Billion+ Investment for AI, Post-Quantum Security appeared first on SecurityWeek .

BeyondTrust warned customers to patch two critical security flaws in its Remote Support (RS) and Privileged Remote Access (PRA) software that could allow attackers to bypass authentication. [...]

Microsoft has begun testing the Cloud Rebuild recovery feature in the latest Windows 11 Insider Preview builds released for users in the Experimental channel. [...]

BonkDAO said in a social media post that it was the victim of a “malicious governance proposal,” or an attack in which holders of a large amount of BONK used that leverage to vote more coins into their wallets.

​Vietnamese authorities have arrested and are prosecuting seven suspects believed to have run HiAnime, the largest anime piracy streaming service before its shutdown in June. [...]

The unnamed student, who lives in a city near Tokyo, allegedly exploited a flaw in a subscription-based anime streaming platform to fraudulently cancel more than 46,000 user subscriptions.

Moving from isolated, technical data to a continuous risk lifecycle can help organizations align security controls with actual business consequences. The post The Shift Toward Business-Aligned Risk Management appeared first on SecurityWeek .

The threat actor uses modular RATs and information stealers in financially motivated and cyber espionage campaigns. The post Armored Likho APT Targeting Government, Electric Power Entities appeared first on SecurityWeek .

Every evolution in software development has reduced the friction between an idea and a deployable application. AI may remove the final barrier, but it also removes many of the moments where security decisions have traditionally taken place. [...]

Organizations are urged to patch after proof-of-concept code makes the Linux root escalation flaw easier to exploit. The post Proof-of-Concept Exploit Released for Linux ‘Bad Epoll’ Root Access Vulnerability appeared first on SecurityWeek .

Building a shortlist for an AI SOC evaluation can be tough. SIEM, SOAR, and pureplay AI SOC vendors are all saying the same thing. But behind the identical label sit very different products, from chat assistants bolted onto a legacy SIEM to agent platforms that run detection, triage, investigation, and response on…

Researchers uncovered two campaigns embedding indirect prompt injections in malicious websites to exploit autonomous AI agents browsing the web. The post Prompt Injection Attacks Trick AI Agents Into Making Crypto Payments appeared first on SecurityWeek .

Researchers at Shandong University have shown a fast new way to pull data off computers that are cut off from every network. The technique, called TrojPix, tweaks on-screen pixels in ways the eye cannot see, so that the video cable carrying them radiates a faint radio signal a nearby receiver can decode. But TrojPix…

Researchers found a flaw in Opera GX, the gaming-focused version of the Opera browser, that let a malicious website silently install a browser add-on and use it to lift specific data from the pages a victim visits. In a proof of concept, they reconstructed a signed-in user's full Gmail address from a single visit,…

Flipper Devices says development of the Flipper Zero firmware will continue, albeit with a smaller internal team and greater reliance on community contributions. [...]

A joint operation involving Google has disrupted NetNut, a residential proxy network that gave access to millions of compromised Android devices, including smart TVs and streaming boxes. [...]