Tag: dos
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Cisco AnyConnect VPN Server Vulnerability Allows Attackers to Trigger DoS
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in SecurityNewsCisco has disclosed a significant vulnerability in itsAnyConnect VPN Serverfor Meraki MX and Z Series devices, allowing authenticated attackers to triggerdenial-of-service (DoS)conditions. The flaw (CVE-2025-20212) stems from an uninitialized variable during SSL VPN session establishment and affects over 20 hardware models across enterprise networks. Vulnerability Overview Exploiting this bug requires valid VPN credentials. Attackers can…
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Vulnerabilities Expose Cisco Meraki and ECE Products to DoS Attacks
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in SecurityNewsCisco fixes two high-severity denial-of-service vulnerabilities in Meraki devices and Enterprise Chat and Email. The post Vulnerabilities Expose Cisco Meraki and ECE Products to DoS Attacks appeared first on SecurityWeek. First seen on securityweek.com Jump to article: www.securityweek.com/vulnerabilities-expose-cisco-meraki-and-ece-products-to-dos-attacks/
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Cisco Warns of Critical IOS XR Vulnerability Enabling DoS Attacks
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in SecurityNewsCisco has issued a security advisory warning of a vulnerability in its IOS XR Software that could allow attackers to launch denial-of-service (DoS) attacks. The vulnerability, identified as CVE-2025-20115, affects the Border Gateway Protocol (BGP) confederation implementation. The CVE-2025-20115 vulnerability affects the Border Gateway Protocol (BGP) confederation implementation in Cisco IOS XR Software, potentially allowing…
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SCADA Vulnerabilities Allow Attackers to Cause DoS and Gain Elevated Privileges
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in SecurityNews
Tags: control, cyber, data, dos, government, infrastructure, microsoft, military, network, risk, vulnerability, windowsA recent security assessment by Palo Alto Networks’ Unit 42 has uncovered multiple vulnerabilities in the ICONICS Suite, a widely used Supervisory Control and Data Acquisition (SCADA) system. These vulnerabilities, identified in versions 10.97.2 and earlier for Microsoft Windows, pose significant risks to critical infrastructure sectors such as government, military, manufacturing, water and wastewater, and…
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Musk links cyberattack on X to Ukraine without evidence
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in SecurityNewsNation-state involvement is possible: While very less is known about the attack, despite a bunch of revelations, experts think a nation-state involvement is indeed possible.”X is under relentless cyberattacks: 24/7/365 and this is far beyond simple DoS attempts,” said Chad Cragle, CISO at DeepWatch. “While technical issues can occur, X’s engineers understand scalability and redundancy.…
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Paragon Partition Manager Vulnerabilities Allow Attackers to Escalate Privileges and Trigger DoS Attacks
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in SecurityNewsSecurity researchers have uncovered five significant vulnerabilities in Paragon Partition Manager’s BioNTdrv.sys driver, affecting versions prior to 2.0.0. These flaws, identified as CVE-2025-0285, CVE-2025-0286, CVE-2025-0287, CVE-2025-0288, and CVE-2025-0289, pose serious security risks, enabling attackers to escalate privileges to SYSTEM level and potentially cause denial-of-service (DoS) scenarios. Multiple Critical Flaws Discovered in BioNTdrv.sys Driver The vulnerabilities,…
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Cisco fixed command injection and DoS flaws in Nexus switches
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in SecurityNewsCisco addressed command injection and denial-of-service (DoS) vulnerabilities in some models of its Nexus switches. Cisco released security updates to address command injection and DoS vulnerabilities in Nexus switches, including a high-severity flaw. The most severe issue, tracked as CVE-2025-20111 (CVSS Score of 7.4), resides in the health monitoring diagnostics of Cisco Nexus 3000 Series…
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OpenSSH Patches Vulnerabilities Allowing MitM, DoS Attacks
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in SecurityNewsThe latest OpenSSH update patches two vulnerabilities, including one that enabled MitM attacks with no user interaction. The post OpenSSH Patches Vulnerabilities Allowing MitM, DoS Attacks appeared first on SecurityWeek. First seen on securityweek.com Jump to article: www.securityweek.com/openssh-patches-vulnerabilities-allowing-mitm-dos-attacks/
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OpenSSH bugs allows Manthe-Middle and DoS Attacks
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in SecurityNewsTwo OpenSSH vulnerabilities could allow machine-in-the-middle (MitM) and denial-of-service (DoS) attacks under certain conditions. The Qualys Threat Research Unit (TRU) has discovered two vulnerabilities in OpenSSH. The first, tracked as CVE-2025-26465 (CVSS score: 6.8) can be exploited by an attacker to conduct an active machine-in-the-middle attack on the OpenSSH client when the VerifyHostKeyDNS option is enabled. The…
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OpenSSH fixes flaws that enable manthe-middle, DoS attacks
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in SecurityNewsThe second vulnerability is needed for a successful attack: But how to trigger this memory error on the client in a real-world scenario. One option was to put a very long key on the fake server, but they were limited by the maximum size of the packet that is exchanged during the handshake which is…
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Critical OpenSSH Vulnerabilities Expose Users to MITM and DoS Attacks
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in SecurityNewsTwo critical OpenSSH vulnerabilities discovered! Qualys TRU finds client and server flaws (CVE-2025-26465 & CVE-2025-26466) enabling MITM and… First seen on hackread.com Jump to article: hackread.com/critical-openssh-flaws-expose-users-mitm-dos-attacks/
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New OpenSSH flaws expose SSH servers to MiTM and DoS attacks
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in SecurityNewsOpenSSH has released security updates addressing two vulnerabilities, a machine-in-the-middle (MitM) and a denial of service flaw, with one of the flaws introduced over a decade ago. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/new-openssh-flaws-expose-ssh-servers-to-mitm-and-dos-attacks/
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New OpenSSH Flaws Enable Manthe-Middle and DoS Attacks, Patch Now
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in SecurityNewsTwo security vulnerabilities have been discovered in the OpenSSH secure networking utility suite that, if successfully exploited, could result in an active machine-in-the-middle (MitM) and a denial-of-service (DoS) attack, respectively, under certain conditions.The vulnerabilities, detailed by the Qualys Threat Research Unit (TRU), are listed below -CVE-2025-26465 – The OpenSSH client First seen on thehackernews.com Jump…
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FreSSH bugs undiscovered for years threaten OpenSSH security
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in SecurityNewsExploit code now available for MitM and DoS attacks First seen on theregister.com Jump to article: www.theregister.com/2025/02/18/openssh_vulnerabilities_mitm_dos/
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Why did the Windows 95 setup use Windows 3.1?
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in SecurityNewsIf MS-DOS could play Doom, surely a battleship gray button was a possibility? First seen on theregister.com Jump to article: www.theregister.com/2025/02/17/windows_95_windows_three_point_one/
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CISO success story: How LA County trains (and retrains) workers to fight phishing
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in SecurityNews
Tags: ai, awareness, breach, business, chatgpt, cio, ciso, cloud, compliance, computing, control, corporate, cybersecurity, data, dos, election, email, endpoint, government, hacker, healthcare, incident response, jobs, law, lessons-learned, malicious, marketplace, network, phishing, privacy, regulation, risk, risk-management, service, software, strategy, supply-chain, tactics, technology, threat, tool, training, vulnerability(The following interview has been edited for clarity and length.)At first glance, LA County’s reporting structure who reports to whom seems, well, fairly complex.We have a federated model: I report to the county CIO. Each department acts as an independent business and has its own department CIO and information security officer. Their job is to…
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Codeberg: Spam- und DoS-Angriffe auf nichtkommerzielle Entwicklungsplattform
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in SecurityNewsMassenhafte Spam-Nachrichten, überlaufende E-Mail-Postfächer und verstopfte Internetleitungen: Anonyme Attacken plagen die gemeinnützige Github-Alternative. First seen on heise.de Jump to article: www.heise.de/news/Codeberg-Spam-und-DoS-Angriffe-auf-nichtkommerzielle-Entwicklungsplattform-10281324.html
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Sicherheitslücken: Gitlab-Entwickler raten zu zügigem Update
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in SecurityNewsGitlab ist unter anderem für DoS-Attacken anfällig. Außerdem können vertrauliche Informationen leaken. First seen on heise.de Jump to article: www.heise.de/news/Sicherheitsluecken-Gitlab-Entwickler-raten-zu-zuegigem-Update-10281262.html
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Fortinet’s FortiOS Vulnerabilities Allow Attackers Trigger RCE and Launch DoS Attack
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in SecurityNewsFortinet’s FortiOS, the operating system powering its VPN and firewall appliances, has been found vulnerable to multiple security flaws that could allow attackers to execute remote code (RCE) and launch denial-of-service (DoS) attacks. These vulnerabilities, disclosed by Akamai researcher Ben Barnea, were assigned CVE-2024-46666 and CVE-2024-46668. Fortinet released patches on January 14, 2025, to mitigate…
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Rogue-DHCP-Server, DHCP-Spoofing und DoS-Angriffe verhindern – DHCP-Schwachstellen erkennen
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in SecurityNewsFirst seen on security-insider.de Jump to article: www.security-insider.de/-schutz-vor-dhcp-spoofing-und-rogue-dhcp-server-angriffen-a-5188be477bcc4cbbd16f538ce6f3ddcd/
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Defekter Sicherheitspatch für HCL BigFix Server Automation repariert
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in SecurityNewsAngreifer können HCL BigFix per DoS-Attacke abschießen. Ein überarbeitetes Sicherheitsupdate soll das Problem nun lösen. First seen on heise.de Jump to article: www.heise.de/news/Defekter-Sicherheitspatch-fuer-HCL-BigFix-Server-Automation-repariert-10273805.html
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F5 BIG-IP SNMP Flaw Allows Attackers to Launch DoS Attacks
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in SecurityNewsA recently disclosed vulnerability in F5’s BIG-IP systems has raised alarm within the cybersecurity community. The flaw, designated CVE-2025-21091, enables remote attackers to exploit SNMP configuration issues, potentially leading to Denial-of-Service (DoS) attacks on affected systems. This vulnerability, which carries aCVSS v4.0 score of 8.7 (High), impacts the control plane of BIG-IP systems. F5 has issued a security…
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Cisco IOS SNMP Vulnerabilities Allow Attackers to Launch DoS Attacks<<
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in SecurityNewsCisco has disclosed multiple vulnerabilities in its Simple Network Management Protocol (SNMP) subsystem affecting Cisco IOS, IOS XE, and IOS XR software. These flaws, identified as high-severity, could allow an authenticated remote attacker to trigger Denial-of-Service (DoS) conditions, disrupting network operations. Key Details According to the Cisco Security Advisory ID: cisco-sa-snmp-dos-sdxnSUcW, the vulnerabilities stem from improper…
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MobSF Framework Zero-Day Vulnerability Allows Attackers to Trigger DoS in Scan Results
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in SecurityNewsA recently discovered zero-day vulnerability in the Mobile Security Framework (MobSF) has raised alarms in the cybersecurity community. The vulnerability, which allows attackers to cause a partial Denial of Service (DoS) on scan results and the iOS Dynamic Analyzer functionality, was disclosed on GitHub yesterday by Ajin Abraham, under the advisory GHSA-jrm8-xgf3-fwqr. Technical Overview The vulnerability,…
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Cisco patches antivirus decommissioning bug as exploit code surfaces
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in SecurityNewsCisco has patched a denial-of-service (DoS) vulnerability affecting its open-source antivirus software toolkit, ClamAV, which already has a proof-of-concept (PoC) exploit code available to the public.Identified as CVE-2025-20128, the vulnerability stems from a heap-based buffer overflow in the Object Linking and Embedding 2 (OLE2) decryption routine, enabling unauthenticated remote attackers to cause a DoS condition…
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Cisco Patches Critical Vulnerability in Meeting Management
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in SecurityNewsCisco has released patches for three vulnerabilities, including a critical privilege escalation bug and a DoS flaw for which exploit code exists. The post Cisco Patches Critical Vulnerability in Meeting Management appeared first on SecurityWeek. First seen on securityweek.com Jump to article: www.securityweek.com/cisco-patches-critical-vulnerability-in-meeting-management/
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Apache CXF Vulnerability Triggers DoS Attack
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in SecurityNewsColm O hEigeartaigh announced a critical vulnerability affecting various versions of Apache CXF, a widely-used framework for building web services. This issue, documented as CVE-2025-23184, poses a significant risk as it can lead to a Denial of Service (DoS) attack due to improper handling of temporary files. The vulnerability has been confirmed in specific versions…
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CVE-2024-55591: Fortinet Authentication Bypass Zero-Day Vulnerability Exploited in the Wild
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in SecurityNewsFortinet patched a zero day authentication bypass vulnerability in FortiOS and FortiProxy that has been actively exploited in the wild as a zero-day since November 2024. Background On January 14, Fortinet released a security advisory (FG-IR-24-535) addressing a critical severity vulnerability impacting FortiOS and FortiProxy. CVE Description CVSSv3 CVE-2024-55591 FortiOS and FortiProxy Authentication Bypass Vulnerability…
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DEF CON 32 Practical Exploitation of DoS in Bug Bounty
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in SecurityNewsAuthor/Presenter: Roni Lupin Carta Our sincere appreciation to DEF CON, and the Authors/Presenters for publishing their erudite DEF CON 32 content. Originating from the conference’s events located at the Las Vegas Convention Center; and via the organizations YouTube channel. Permalink First seen on securityboulevard.com Jump to article: securityboulevard.com/2025/01/def-con-32-practical-exploitation-of-dos-in-bug-bounty/