Latest cybersecurity reporting from selected sources.

Cisco patched a Crosswork Network Controller and Network Services Orchestrator denial-of-service vulnerability that requires manually rebooting targeted systems for recovery. [...]

Cisco warned this week that two vulnerabilities, which have been exploited in zero-day attacks, are now being abused to force ASA and FTD firewalls into reboot loops. [...]

Cisco on Wednesday disclosed that it became aware of a new attack variant that's designed to target devices running Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software releases that are susceptible to CVE-2025-20333 and CVE-2025-20362

Cybersecurity never stops—and neither do hackers. While you wrapped up last week, new attacks were already underway

Cisco has warned of a high-severity security flaw in IOS Software and IOS XE Software that could allow a remote attacker to execute arbitrary code or trigger a denial-of-service (DoS) condition under specific circumstances

Cybersecurity researchers are warning of continued risks posed by a distributed denial-of-service (DDoS) malware known as XorDDoS, with 71.3 percent of the attacks between November 2023 and February 2025 targeting the United States

Cisco has patched a denial of service (DoS) vulnerability that lets attackers crash the Border Gateway Protocol (BGP) process on IOS XR routers with a single BGP update message. [...]

Cisco has released security updates to patch a ClamAV denial-of-service (DoS) vulnerability, which has proof-of-concept (PoC) exploit code. [...]

Cisco fixed a denial of service flaw in its Cisco ASA and Firepower Threat Defense (FTD) software, which was discovered during large-scale brute force attacks against Cisco VPN devices in April. [...]

Unauthenticated threat actors can remotely cause a denial-of-service (DoS) cyberattack within the Remote Access VPN software in Cisco's ASA and Firepower software.

Cisco on Wednesday said it has released updates to address an actively exploited security flaw in its Adaptive Security Appliance (ASA) that could lead to a denial-of-service (DoS) condition

Also: Hacker Sells Data Obtained Through Snowflake AttackThis week, Microsoft deprecated NTLM authentication, a hacker put apparently stolen Snowflake data up for sale, Ticketmaster confirmed its breach, Cisco patched Webex vulnerabilities, pro-Russian hacktivists claimed a DDoS attack in Spain and Kaspersky launched a free virus removal tool for Linux.

Several Cisco products, including IOS, IOS XE, and AP software, need patching against various high-risk security vulnerabilities.

Cyberattackers could exploit CVE-2023-20238 to carry out a variety of nefarious deeds, from data theft and code execution to phishing, fraud, and DoS.

Cisco has released security fixes to address multiple security flaws, including a critical bug, that could be exploited by a threat actor to take control of an affected system or cause a denial-of service (DoS) condition

Cisco has released updates to address a set of nine security flaws in its Small Business Series Switches that could be exploited by an unauthenticated, remote attacker to run arbitrary code or cause a denial-of-service (DoS) condition

F5 has warned of a high-severity flaw impacting BIG-IP appliances that could lead to denial-of-service (DoS) or arbitrary code execution

Cisco has released a new security advisory warning of a high-severity flaw affecting IP Phone 7800 and 8800 Series firmware that could be potentially exploited by a remote attacker to cause remote code execution or a denial-of-service (DoS) condition

Cisco has disclosed today a high-severity zero-day vulnerability affecting the latest generation of its IP phones and exposing them to remote code execution and denial of service (DoS) attacks. [...]

Cisco has disclosed today a high-severity vulnerability affecting the latest generation of its IP phones and exposing unpatched devices to remote code execution and denial of service (DoS) attacks. [...]