Tag: zero-day
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New zero-day bug in Microsoft SharePoint under widespread attack
Security researchers say Microsoft customers should take immediate action to defend against the ongoing cyberattacks, and must assume they have already been compromised. First seen on techcrunch.com Jump to article: techcrunch.com/2025/07/21/new-zero-day-bug-in-microsoft-sharepoint-under-widespread-attack/
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U.S. CISA urges to immediately patch Microsoft SharePoint flaw adding it to its Known Exploited Vulnerabilities catalog
Tags: cisa, cve, cybersecurity, exploit, flaw, infrastructure, kev, microsoft, update, vulnerability, zero-dayU.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Microsoft SharePoint flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Microsoft SharePoint flaw, tracked as CVE-2025-53770 (“ToolShell”) (CVSS score of 9.8), to its Known Exploited Vulnerabilities (KEV) catalog. This week, Microsoft released emergency SharePoint updates for two zero-day flaws, tracked as CVE-2025-53770 and CVE-2025-53771,…
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Attackers Exploit Zero-Day Flaws in On-Premises SharePoint
Microsoft Issuing Emergency Patches to Combat Authentication-Bypassing Attacks. Hackers have been exploiting two zero-day vulnerabilities in on-premises installations of Microsoft SharePoint to gain remote access, and steal cryptographic keys and data. As Microsoft rolls out patches against ToolShell, experts warn administrators to also rotate keys, to help eject attackers. First seen on govinfosecurity.com Jump to…
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âš¡ Weekly Recap: SharePoint 0-Day, Chrome Exploit, macOS Spyware, NVIDIA Toolkit RCE and More
Even in well-secured environments, attackers are getting in”, not with flashy exploits, but by quietly taking advantage of weak settings, outdated encryption, and trusted tools left unprotected.These attacks don’t depend on zero-days. They work by staying unnoticed”, slipping through the cracks in what we monitor and what we assume is safe. What once looked suspicious…
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Warnings issued as hackers actively exploit critical zero-day in Microsoft SharePoint
Microsoft has issued an urgent patch for most SharePoint servers after cybersecurity researchers found threat actors globally exploiting a zero-day vulnerability in the products. First seen on therecord.media Jump to article: therecord.media/microsoft-sharepoint-zero-day-vulnerability-exploited-globally
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Microsoft issues emergency patches for SharePoint zero-days exploited in >>ToolShell<< attacks
Microsoft patched an exploited SharePoint flaw (CVE-2025-53770) and disclosed a new one, warning of ongoing attacks on on-prem servers. Microsoft released emergency SharePoint updates for two zero-day flaws, tracked as CVE-2025-53770 and CVE-2025-53771, exploited since July 18 in attacks dubbed >>ToolShell.
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Microsoft SharePoint servers under attack via zero-day vulnerability (CVE-2025-53770)
Attackers are exploiting a zero-day variant (CVE-2025-53770) of a SharePoint remote code execution vulnerability (CVE-2025-49706) that Microsoft patched earlier this month, … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2025/07/20/microsoft-sharepoint-servers-under-attack-via-zero-day-vulnerability-with-no-patch-cve-2025-53770/
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CrushFTP Servers Hit by Critical Zero-Day Vulnerability CVE-2025-54309
A new zero-day vulnerability in CrushFTP file transfer servers is being actively exploited by cybercriminals, compromising systems around the world. Tracked as CVE-2025-54309, the CrushFTP zero-day vulnerability was first observed in active exploitation on July 18, 2025. First seen on thecyberexpress.com Jump to article: thecyberexpress.com/crushftp-zero-day-flaw-cve-2025-54309/
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SharePoint-Notfall-Updates für 0-day Schwachstelle (CVE-2025-53770)
Seit dem 18. Juli 2025 werden weltweit SharePoint-Server über die zum 14. Juli 2025 gepatchten Schwachstellen CVE-2025-49704 und CVE-2025-49706 angegriffen. Aber es gibt eine weitere 0-day-Schwachstelle CVE-2025-53770 (eine Variante von CVE-2025-49706), die bisher ungepatcht war (CVSS 3.1 9.8), die auch … First seen on borncity.com Jump to article: www.borncity.com/blog/2025/07/21/sharepoint-notfall-updates-fuer-0-day-schwachstelle-cve-2025-53770/
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SharePoint zero-day CVE-2025-53770 actively exploited in the wild
Microsoft warns of ongoing active exploitation of a SharePoint zero-day vulnerability, tracked as CVE-2025-53770. Microsoft warns of a SharePoint zero-day vulnerability, tracked as CVE-2025-53770 (CVSS score of 9.8), which is under active exploitation. Unfortunately, the flaw has yet to be addressed. The vulnerability is a deserialization of untrusted data in on-premises Microsoft SharePoint Server, an…
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Zero-Day-Lücke: Hacker attackieren massenhaft Microsoft-Sharepoint-Instanzen
Wer einen Sharepoint-Server betreibt, sollte dringend handeln. Hacker hebeln derzeit aktiv einen Patch für eine kritische Sicherheitslücke aus. First seen on golem.de Jump to article: www.golem.de/news/zero-day-luecke-hacker-attackieren-massenhaft-microsoft-sharepoint-instanzen-2507-198299.html
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CISA Issues Alert on Microsoft SharePoint 0-Day RCE Exploited in Attacks
Tags: attack, cisa, cve, cyber, cybersecurity, data, exploit, flaw, infrastructure, microsoft, rce, remote-code-execution, threat, vulnerability, zero-dayThe Cybersecurity and Infrastructure Security Agency (CISA) has issued an urgent security alert regarding a critical zero-day vulnerability in Microsoft SharePoint Server that is being actively exploited in cyberattacks. The vulnerability, tracked as CVE-2025-53770, represents a significant threat to organizations running on-premises SharePoint installations. The flaw stems from a deserialization of untrusted data vulnerability within…
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Microsoft releases emergency patches for SharePoint RCE flaws exploited in attacks
Microsoft has released emergency SharePoint security updates for two zero-day vulnerabilities tracked as CVE-2025-53770 and CVE-2025-53771 that have compromised services worldwide in “ToolShell” attacks. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/microsoft-releases-emergency-patches-for-sharepoint-rce-flaws-exploited-in-attacks/
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SharePoint 0-Day RCE Flaw Actively Exploited for Full Server Takeover
A devastating new SharePoint vulnerability is being actively exploited in large-scale attacks worldwide, enabling attackers to gain complete control of on-premise servers without authentication. Security researchers at Eye Security discovered the ongoing campaign on July 18, 2025, revealing a sophisticated exploit chain dubbed >>ToolShell
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CrushFTP 0-Day Vulnerability Actively Exploited to Breach Servers
A critical zero-day vulnerability in CrushFTP servers is being actively exploited by threat actors to compromise systems worldwide. The vulnerability, designated CVE-2025-54309, was first observed in active exploitation on July 18th at 9:00 AM CST, though security researchers believe the attacks may have been ongoing for longer periods before detection. Vulnerability Details and Attack Vector…
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Microsoft SharePoint servers under attack via zero-day vulnerability with no patch (CVE-2025-53770)
Attackers are exploiting a zero-day variant (CVE-2025-53770) of a SharePoint remote code execution vulnerability (CVE-2025-49706) that Microsoft patched earlier this month, … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2025/07/20/microsoft-sharepoint-servers-under-attack-via-zero-day-vulnerability-with-no-patch-cve-2025-53770/
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Singapore warns China-linked group UNC3886 targets its critical infrastructure
Singapore says China-linked group UNC3886 targeted its critical infrastructure by hacking routers and security devices. Singapore accused China-linked APT group UNC3886 of targeting its critical infrastructure. UNC3886 is a sophisticated China-linked cyber espionage group that targets network devices and virtualization technologies using zero-day exploits. Its primary focus is on defense, technology, and telecommunications sectors in…
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Microsoft SharePoint zero-day exploited in RCE attacks, no patch available
A critical zero-day vulnerability in Microsoft SharePoint, tracked as CVE-2025-53770, has been actively exploited since at least July 18th, with no patch available and at least 85 servers already compromised worldwide. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available/
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Critical Unpatched SharePoint Zero-Day Actively Exploited, Breaches 75+ Company Servers
A critical security vulnerability in Microsoft SharePoint Server has been weaponized as part of an “active, large-scale” exploitation campaign.The zero-day flaw, tracked as CVE-2025-53770 (CVSS score: 9.8), has been described as a variant of CVE-2025-49706 (CVSS score: 6.3), a spoofing bug in Microsoft SharePoint Server that was addressed by the tech giant as part of…
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Sharepoint-Server werden über 0-day Schwachstelle (CVE-2025-53770) angegriffen
Betreibt jemand aus der Leserschaft einen SharePoint-Server, der per Internet erreichbar ist? Dann ist möglicherweise die Hütte am Brennen. Seit gestern erhalte ich Informationen, dass SharePoint-Server seit dem 18. Juli 2025 über 0-day Exploits angegriffen werden. Ein Leserhinweis vom 19.7. … First seen on borncity.com Jump to article: www.borncity.com/blog/2025/07/20/sharepoint-server-werden-ueber-0-day-schwachstelle-cve-2025-53770-angegriffen/
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Critical Unpatched SharePoint Zero-Day Actively Exploited, Breaches 75+ Global Organizations
A critical security vulnerability in Microsoft SharePoint Server has been weaponized as part of an “active, large-scale” exploitation campaign.The zero-day flaw, tracked as CVE-2025-53770 (CVSS score: 9.8), has been described as a variant of CVE-2025-49706 (CVSS score: 6.3), a spoofing bug in Microsoft SharePoint Server that was addressed by the tech giant as part of…
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Week in review: Google fixes zero-day vulnerability in Chrome, critical SQL injection flaw in FortiWeb
Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Update Google Chrome to fix actively exploited zero-day (CVE-2025-6558) For … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2025/07/20/week-in-review-google-fixes-zero-day-vulnerability-in-chrome-critical-sql-injection-flaw-in-fortiweb/
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CrushFTP mit 0-Day-Schwachstelle CVE-2025-54309
Jemand aus der Blog-Leserschaft, der das Programm CrushFTP zum Dateitransfer verwendet? Inzwischen haben sich mehrere Leser gemeldet (danke dafür), dass es Meldungen über eine 0-Day-Schwachstelle (CVE-2025-54309) gibt, die wohl auch schon ausgenutzt wird. Was ist CrushFTP? CrushFTP ist ein ursprünglich 1999 … First seen on borncity.com Jump to article: www.borncity.com/blog/2025/07/19/crushftp-mit-0-day-schwachstelle-cve-2025-54309/
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New CrushFTP zero-day exploited in attacks to hijack servers
CrushFTP is warning that threat actors are actively exploiting a zero-day vulnerability tracked as CVE-2025-54309, which allows attackers to gain administrative access via the web interface on vulnerable servers. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/new-crushftp-zero-day-exploited-in-attacks-to-hijack-servers/
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Threat actors scanning for apps incorporating vulnerable Spring Boot tool
Tags: access, attack, authentication, ciso, compliance, country, credentials, cybersecurity, data, data-breach, email, encryption, endpoint, exploit, finance, flaw, governance, group, hacker, incident response, infrastructure, Internet, kev, nist, organized, password, risk, technology, threat, tool, vulnerability, zero-day/health endpoints, commonly used to detect internet-exposed Spring Boot deployments. If vulnerable implementations of apps, including TeleMessage SGNL, are found, they could be exploited to steal sensitive data in heap memory, including plaintext usernames and passwords. The hole is serious enough that it was added this week to the US Cybersecurity and Infrastructure Security Agency’s Known Exploited…
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CrushFTP zero-day exploited in attacks to gain admin access on servers
CrushFTP is warning that threat actors are actively exploiting a zero-day vulnerability tracked as CVE-2025-54309, which allows attackers to gain administrative access via the web interface on vulnerable servers. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/crushftp-zero-day-exploited-in-attacks-to-gain-admin-access-on-servers/
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CrushFTP zero-day exploited to gain admin access on servers
CrushFTP is warning that threat actors are actively exploiting a zero-day vulnerability tracked as CVE-2025-54309, which allows attackers to gain administrative access via the web interface on vulnerable servers. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/crushftp-zero-day-exploited-to-gain-admin-access-on-servers/
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Ivanti Zero-Days Exploited to Drop MDifyLoader and Launch In-Memory Cobalt Strike Attacks
Cybersecurity researchers have disclosed details of a new malware called MDifyLoader that has been observed in conjunction with cyber attacks exploiting security flaws in Ivanti Connect Secure (ICS) appliances.According to a report published by JPCERT/CC today, the threat actors behind the exploitation of CVE-2025-0282 and CVE-2025-22457 in intrusions observed between December 2024 and July First…
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VMware fixes four ESXi zero-day bugs exploited at Pwn2Own Berlin
VMware fixed four vulnerabilities in VMware ESXi, Workstation, Fusion, and Tools that were exploited as zero-days during the Pwn2Own Berlin 2025 hacking contest in May 2025. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/vmware-fixes-four-esxi-zero-day-bugs-exploited-at-pwn2own-berlin/