Latest cybersecurity reporting from selected sources.

The Interlock ransomware gang has been exploiting a maximum severity remote code execution (RCE) vulnerability in Cisco's Secure Firewall Management Center (FMC) software in zero-day attacks since late January. [...]

Vendor Ships Emergency Fixes, Warning Flaw Facilitates Full System CompromiseAttackers are targeting a zero-day vulnerability in Cisco's Unified Communications and Webex products that facilitates remote code execution and root-level access to the underlying operating system, risking full system compromise. Cisco has released patches, warning that no workarounds exist.

Cisco has fixed a critical Unified Communications and Webex Calling remote code execution vulnerability, tracked as CVE-2026-20045, that has been actively exploited as a zero-day in attacks. [...]

Cisco on Thursday released security updates for a maximum-severity security flaw impacting Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Email and Web Manager, nearly a month after the company disclosed that it had been exploited as a zero-day by a China-nexus advanced persistent threat (APT) actor codenamed UAT-9686

Flaw Enabled Remote Code Execution, Say AWS ResearchersResearchers from AWS said they spotted a hacking campaign taking advantage of a zero-day vulnerability in Cisco network access control software before the routing giant patched it earlier this year. The flaw let attackers perform pre-authentication remote code execution.

Threat actors exploited a recently patched remote code execution vulnerability (CVE-2025-20352) in older, unprotected Cisco networking devices to deploy a Linux rootkit and gain persistent access. [...]

Trend™ Research has uncovered an attack campaign exploiting the Cisco SNMP vulnerability CVE-2025-20352, allowing remote code execution and rootkit deployment on unprotected devices, with impacts observed on Cisco 9400, 9300, and legacy 3750G series.

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

Switchzilla's summer of perfect 10s Cisco has issued a patch for a maximum-severity bug in its Secure Firewall Management Center (FMC) software that could allow an unauthenticated, remote attacker to inject arbitrary shell commands on vulnerable systems.…

Cisco is warning about a critical remote code execution (RCE) vulnerability in the RADIUS subsystem of its Secure Firewall Management Center (FMC) software. [...]

Cisco has issued a software update to address the vulnerability, which can allow an unauthenticated, remote attacker to inject arbitrary shell commands

Cisco has released security updates to address a maximum-severity security flaw in Secure Firewall Management Center (FMC) Software that could allow an attacker to execute arbitrary code on affected systems

Security researcher Bobby Gould has published a blog post demonstrating a complete exploit chain for CVE-2025-20281, an unauthenticated remote code execution vulnerability in Cisco Identity Services Engine (ISE). [...]

Cisco is warning that three recently patched critical remote code execution vulnerabilities in Cisco Identity Services Engine (ISE) are now being actively exploited in attacks. [...]

Cisco has published a bulletin to warn about two critical, unauthenticated remote code execution (RCE) vulnerabilities affecting Cisco Identity Services Engine (ISE) and the Passive Identity Connector (ISE-PIC). [...]

Cisco has released updates to address two maximum-severity security flaws in Identity Services Engine (ISE) and ISE Passive Identity Connector (ISE-PIC) that could permit an unauthenticated attacker to execute arbitrary commands as the root user

Researchers in Proof of Concept Show Exploit Potential for Widely Used SoftwareTechnical details for a recently patched maximum-severity vulnerability in Cisco IOS XE reveal how hackers can enable remote code execution if the flaw is exploited. The vulnerability is an arbitrary file upload triggered by a hardcoded JSON Web Token.

Intrusions began weeks before Trimble patched the Cityworks hole A suspected Chinese crew has been exploiting a now-patched remote code execution (RCE) flaw in Trimble Cityworks to break into US local government networks and target utility management systems, according to Cisco's Talos threat intelligence group.…

Cisco has released security updates for a high-severity Webex vulnerability that allows unauthenticated attackers to gain client-side remote code execution using malicious meeting invite links. [...]

Threat actors of unknown provenance have been attributed to a malicious campaign predominantly targeting organizations in Japan since January 2025