cisco
Cisco fixes SD-WAN vManage flaw exploited in zero-day attacks
Cisco has released security updates to address a vulnerability in the Catalyst SD-WAN Manager, tracked as CVE-2026-20262, that was exploited in attacks to escalate to root privileges. Formerly known as SD-WAN vManage, this network management software allows admins to manage up to 6,000 SD-WAN devices from a single dashboard. The now-patched zero-day security flaw affects all deployment […]
Cisco warns of unpatched SD-WAN zero-day exploited in attacks
On Thursday, Cisco warned of a high-severity, unpatched zero-day in the Cisco Catalyst SD-WAN Manager (tracked as CVE-2026-20245) actively exploited in attacks enabling root privilege escalation. The zero-day flaw impacts all deployment types, including On-Prem Deployment, Cisco SD-WAN Cloud-Pro, Cisco SD-WAN Cloud (Cisco Managed), and Cisco SD-WAN for Government (FedRAMP). In a Thursday advisory, Cisco said the […]
Cisco warns of critical Unified CM flaw with PoC exploit code
Cisco has released security updates to patch a critical-severity Unified Communications Manager (Unified CM) flaw that allows attackers to gain root privileges. Cisco Unified CM (formerly known as Cisco CallManager) serves as the central control system for Cisco IP telephony systems, handling device management, call routing, and telephony features. The vulnerability (tracked as CVE-2026-20230) can be exploited […]
Max severity Cisco Secure Workload flaw gives Site Admin privileges
Cisco has released security updates to address a maximum-severity Secure Workload vulnerability that allows attackers to gain Site Admin privileges. Formerly known as Cisco Tetration, Cisco Secure Workload helps admins reduce their network’s attack surface through zero trust microsegmentation and stop lateral movement to keep business applications safe. Tracked as CVE-2026-20223, the security flaw was found […]
Cisco warns of new critical SD-WAN flaw exploited in zero-day attacks
Cisco is warning that a critical Catalyst SD-WAN Controller authentication bypass flaw, tracked as CVE-2026-20182, was actively exploited in zero-day attacks that allowed attackers to gain administrative privileges on compromised devices. CVE-2026-20182 has a maximum severity of 10.0 and impacts Cisco Catalyst SD-WAN Controller and Cisco Catalyst SD-WAN Manager in on-prem and SD-WAN Cloud deployments. In an […]
New Cisco DoS flaw requires manual reboot to revive devices
Cisco released security updates to fix a Crosswork Network Controller (CNC) and Network Services Orchestrator (NSO) denial-of-service (DoS) vulnerability that requires manually rebooting targeted systems for recovery. Large enterprises and service providers leverage the CNC software suite to simplify multivendor network management and operations handling with automation, while the NSO orchestration platform helps them manage […]
Firestarter malware survives Cisco firewall updates, security patches
Cybersecurity agencies in the U.S. and U.K. are warning about a custom malware called Firestarter persisting on Cisco Firepower and Secure Firewall devices running Adaptive Security Appliance (ASA) or Firepower Threat Defense (FTD) software. The backdoor has been attributed to a threat actor that Cisco Talos tracks internally as UAT-4356, known for cyberespionage campaigns, including ArcaneDoor. […]
CISA flags new SD-WAN flaw as actively exploited in attacks
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has given government agencies four days to secure their systems against another Catalyst SD-WAN Manager vulnerability it flagged as actively exploited in attacks. Catalyst SD-WAN Manager (formerly known as vManage) is a network management software that helps admins monitor and manage up to 6,000 Catalyst SD-WAN devices […]
Cisco says critical Webex Services flaw requires customer action
Cisco has released security updates to patch four critical vulnerabilities, including a fixed improper certificate validation flaw in the company’s cloud-based Webex Services platform that requires further customer action. Webex Services is a customer experience platform that unifies communication across hybrid work environments, enabling team members to call, meet, and message each other from any […]
Hackers exploit React2Shell in automated credential theft campaign
Hackers are running a large-scale campaign to steal credentials in an automated way after exploiting React2Shell (CVE-2025-55182) in vulnerable Next.js apps. At least 766 hosts across various cloud providers and geographies have been compromised to collect database and AWS credentials, SSH private keys, API keys, cloud tokens, and environment secrets. The operation uses a framework named NEXUS Listener and […]