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The flaw enables server-side request forgery (SSRF) and escalates privileges to root, impacting Cisco Unified CM and Unified CM SME deployments.
Researchers believe rogue peering was used to connect to the victim's SD-WAN devices to gain admin privileges and root-level access.
Mass scanning is underway for CVE-2026-20045, which Cisco tagged as critical because successful exploitation could lead to a complete system takeover.
In the past year, "Static Tundra," aka "Energetic Bear," has breached thousands of end-of-life Cisco devices unpatched against a 2018 flaw, in a campaign targeting enterprises and critical infrastructure.
Cisco just disclosed a critical severity flaw in its ISE and ISE-PIC products, joining two similar bugs disclosed last month.
The Canadian Center for Cybersecurity has confirmed that the Chinese state-sponsored cyber-threat actor targeted one of its telecommunications companies in February via a Cisco flaw, as part of global attack wave.
Attackers can spoof millions of email addresses to create targeted phishing attacks using flaws in Microsoft, GTX, and Cisco Secure Email Gateway servers.
No patch or workaround is currently available for the maximum severity flaw, which allows attackers to gain complete administrator privilege on affected devices remotely and without authentication.
A flaw in the REST API of Cisco's SD_WAN vManage software could allow remote, unauthenticated attackers to perform data exfiltration.
Vulnerable Nexus 9000 Series Fabric Switches in ACI mode should be disabled, Cisco advises.
Unpatched Cisco bugs, tracked as CVE-2023-20025 and CVE-2023-20026, allow lateral movement, data theft, and malware infestations.
CISA’s Known Exploited Vulnerabilities Catalog has become a valuable repository of vulnerabilities to be patched. A pair of reports analyze the vulnerabilities under attack to understand the kind of threats organizations should be prioritizing.
More than 1 million instances of firewalls running Cisco Adaptive Security Appliance (ASA) software have four vulnerabilities that undermine its security, a researcher finds.