Tag: flaw
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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…
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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 First seen…
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Public PoC Exposes Critical Veeam Agent Privilege Escalation
A Veeam Agent flaw lets local users gain SYSTEM privileges. A public PoC is available, raising the risk of exploitation on shared Windows systems. If you’re running Veeam Agent on a Windows endpoint with more than one local user, now’s the time to check the version, not tomorrow. On September 14, 2026, public technical details…
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Hackers Exploit Veeam Agent Vulnerability to Gain SYSTEM-Level Access on Windows
A newly discovered privilege escalation flaw in Veeam Agent for Microsoft Windows could allow attackers with local access to compromised endpoints to execute commands as NT AUTHORITY\SYSTEM. Public proof-of-concept (PoC) code for CVE-2026-32996 was released on September 14, increasing the urgency for organizations to patch affected Veeam deployments. CVE-2026-32996 impacts Veeam Agent for Microsoft Windows…
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Red Hat OpenShift Flaw Lets Attackers Poison Disconnected Registries With Malicious Releases
Red Hat disclosed an important OpenShift vulnerability that could let attackers bypass release-image signature checks and introduce malicious payloads into disconnected registries. This issue, tracked as CVE-2026-75939, affects the `openshift/oc-mirror` tool and has a preliminary CVSS v3.1 score of 7.4. Administrators use `oc-mirror` to retrieve release images from upstream sources and then copy them to…
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Critical MaxKB AI Agent Flaw Lets Prompt Injection Execute System Commands
A critical vulnerability in the MaxKB AI knowledge-base platform could let attackers exploit prompt injection and run operating system commands on vulnerable deployments, including directly on the underlying host in some configurations. This flaw, tracked as CVE-2026-77521 and GHSA-f36j-f34j-h3rx, affects MaxKB versions up to and including 2.10.3-lts. The issue has received a maximum CVSS v3.1…
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U.S. CISA adds Zyxel flaw to its Known Exploited Vulnerabilities catalog
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Zyxel flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a Zyxel GS1900 Series Switches flaw, tracked as CVE-2026-7273 (CVSS score of 8.8), to its Known Exploited Vulnerabilities (KEV) catalog. The flaw is a stack-based buffer overflow that could allow attackers…
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U.S. CISA adds Zyxel flaw to its Known Exploited Vulnerabilities catalog
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Zyxel flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a Zyxel GS1900 Series Switches flaw, tracked as CVE-2026-7273 (CVSS score of 8.8), to its Known Exploited Vulnerabilities (KEV) catalog. The flaw is a stack-based buffer overflow that could allow attackers…
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Orkes Conductor RCE Draws Nearly 7,000 Exploit Attempts
A critical Orkes Conductor flaw is under active attack, with 6,696 exploit attempts blocked in a week. Defenders should upgrade to version 3.30.2 or later. First seen on esecurityplanet.com Jump to article: www.esecurityplanet.com/threats/news-orkes-conductor-rce-cve-2026-58138/
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U.S. CISA adds Zyxel flaw to its Known Exploited Vulnerabilities catalog
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Zyxel flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a Zyxel GS1900 Series Switches flaw, tracked as CVE-2026-7273 (CVSS score of 8.8), to its Known Exploited Vulnerabilities (KEV) catalog. The flaw is a stack-based buffer overflow that could allow attackers…
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U.S. CISA adds Zyxel flaw to its Known Exploited Vulnerabilities catalog
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Zyxel flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a Zyxel GS1900 Series Switches flaw, tracked as CVE-2026-7273 (CVSS score of 8.8), to its Known Exploited Vulnerabilities (KEV) catalog. The flaw is a stack-based buffer overflow that could allow attackers…
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CISA orders feds to patch Zyxel flaw exploited for data theft
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). First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/cisa-orders-feds-to-patch-actively-exploited-zyxel-flaw-by-thursday/
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CISA Flags Actively Exploited Flaw in Zyxel GS1900 Switches
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has included a high-severity vulnerability affecting Zyxel GS1900 Series switches in its Known Exploited Vulnerabilities (KEV) Catalog. This warning highlights that the flaw, tracked as CVE-2026-7273, has been exploited in the wild. The vulnerability stems from a stack-based buffer overflow in the device’s CGI program. CISA added…
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NTU uses AI agents to uncover flaws in mobile networks
Nanyang Technological University’s agentic AI tool checks mobile core network code against 3GPP specifications and has found 84 vulnerabilities, including one that lets an attacker hijack a subscriber’s internet session First seen on computerweekly.com Jump to article: www.computerweekly.com/news/366650777/NTU-uses-AI-agents-to-uncover-flaws-in-mobile-networks
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WordPress Comment2Shell Flaw Can Turn Anonymous Comment XSS Into RCE via Admin Session
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…
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Zyxel and Veeam Flaws Under Active Exploitation With Command and SYSTEM Access
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added a now-patched security flaw impacting Zyxel GS1900 series switches to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation.The vulnerability, tracked as CVE-2026-7273 (CVSS score: 8.8), is a stack-based buffer overflow vulnerability that could result in arbitrary operating First seen on thehackernews.com…
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Zyxel and Veeam Flaws Under Active Exploitation With Command and SYSTEM Access
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added a now-patched security flaw impacting Zyxel GS1900 series switches to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation.The vulnerability, tracked as CVE-2026-7273 (CVSS score: 8.8), is a stack-based buffer overflow vulnerability that could result in arbitrary operating First seen on thehackernews.com…
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One Hidden Meta Muse Setting Could Let Attackers Turn the AI Assistant Into a Backdoor
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…
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CISA alerts of active exploitation of three Linux kernel flaws
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning that hackers are exploiting three Linux kernel vulnerabilities, one of them rated critical. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/cisa-alerts-of-active-exploitation-of-three-linux-kernel-flaws/
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WordPress Click2Shell flaw lets hackers execute PHP on the server
Technical details and a proof-of-concept exploit have been published for a new WordPress cross-site request forgery (CSRF) vulnerability dubbed ‘Click2Shell’ that affects the platform’s Core component. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/wordpress-click2shell-flaw-lets-hackers-execute-php-on-the-server/
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Hackers exploit Gyazo server flaw to steal 23.6 million user records
Japanese software company Helpfeel has confirmed a data breach on its screenshot-sharing platform Gyazo, in which attackers exploited a vulnerability in its image upload … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/09/21/helpfeel-gyazo-data-breach/
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New Cache Key Injection Attack Lets Hackers Bypass Access Controls and Poison Nginx Caches
Security researchers have unveiled a cache poisoning technique called cache key injection that lets attackers bypass access controls, expose cached sensitive pages, trigger denial-of-service conditions, and potentially execute stored cross-site scripting (XSS) attacks against vulnerable Nginx deployments. Research by YesWeHack researcher Alex Brumen highlights flaws that occur when web caches create cache keys by directly…
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New Cache Key Injection Attack Lets Hackers Bypass Access Controls and Poison Nginx Caches
Security researchers have unveiled a cache poisoning technique called cache key injection that lets attackers bypass access controls, expose cached sensitive pages, trigger denial-of-service conditions, and potentially execute stored cross-site scripting (XSS) attacks against vulnerable Nginx deployments. Research by YesWeHack researcher Alex Brumen highlights flaws that occur when web caches create cache keys by directly…
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New Cache Key Injection Attack Lets Hackers Bypass Access Controls and Poison Nginx Caches
Security researchers have unveiled a cache poisoning technique called cache key injection that lets attackers bypass access controls, expose cached sensitive pages, trigger denial-of-service conditions, and potentially execute stored cross-site scripting (XSS) attacks against vulnerable Nginx deployments. Research by YesWeHack researcher Alex Brumen highlights flaws that occur when web caches create cache keys by directly…
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New Cache Key Injection Attack Lets Hackers Bypass Access Controls and Poison Nginx Caches
Security researchers have unveiled a cache poisoning technique called cache key injection that lets attackers bypass access controls, expose cached sensitive pages, trigger denial-of-service conditions, and potentially execute stored cross-site scripting (XSS) attacks against vulnerable Nginx deployments. Research by YesWeHack researcher Alex Brumen highlights flaws that occur when web caches create cache keys by directly…
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HEIF Heist Image Flaws Let Attackers Gain RCE Across Meta, Slack and GitHub Enterprise
Tags: attack, cyber, data, flaw, github, malicious, rce, remote-code-execution, supply-chain, technology, threat“HEIF Heist,” a broad class of image-processing attack paths that could allow threat actors to turn malicious HEIF, HEIC, and AVIF uploads into remote code execution, sensitive-data exposure, and account compromise across major technology and enterprise platforms. The research, published by Hacktron, highlights a familiar but increasingly dangerous supply-chain weakness: applications often trust native image-decoding…
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Exim Mail Server Hit by 4 Security Flaws Enabling SMTP Smuggling and Heap Corruption
Exim maintainers have released version 4.100.1 to address four security vulnerabilities affecting the widely used mail transfer agent. This update resolves issues that could potentially enable SMTP smuggling and heap-memory corruption under certain configurations. The release, announced on September 18, fixes the following vulnerabilities: GCVE-25-2026-09-50-1, GCVE-25-2026-09-51-1, GCVE-25-2026-09-55-1, and GCVE-25-2026-09-56-1. Administrators using vulnerable installations of Exim…
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Click2Shell WordPress Flaw Lets Hackers Execute PHP Code and Take Over Websites
A recently disclosed WordPress vulnerability, known as Click2Shell, could let attackers execute remote PHP code on vulnerable sites after convincing a logged-in administrator to click a specially crafted link. WordPress version 7.1.1, released on September 17, 2026, addresses this issue. Researchers at PWNAI reported that the flaw exploits WordPress’s theme-preview workflow to install a theme…
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SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 115
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Gray Rabbits and the Tale of a One-Click Backdoor Red Heron exploits Gitea n-day flaw in multinational campaign, exposing new Linux rootkit Malicious Twitch Browser Extension Exposes 30,000 Users’ OAuth Tokens to Russian Bot…
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AI Helps Hackers Hijack OpenAI Staff Accounts Through a Forum
AI helped researchers exploit a Discourse flaw in under 72 hours, hijacking OpenAI staff accounts and exposing the risks of shared SSO. Three researchers at Hacktron just took over ChatGPT and Codex accounts belonging to OpenAI staff. The attack did not rely on phishing techniques or a leaked password. Through an image upload on OpenAI’s…