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Cisco disclosed a critical vulnerability, CVE-2026-76466 (CVSS v3.1 9.8), in the database service of Cisco Expressway Series (Expressway-C and Expressway-E). An unauthenticated remote attacker with network access and the relevant cookies could execute arbitrary operating system commands as root. The flaw stems from the use of persistent c…
Microsoft Threat Intelligence reports active exploitation of CVE-2026-73570, a command injection flaw in Zimbra Collaboration Suite that allows unauthenticated, zero-click compromise of internet-facing email servers. Attackers deployed webshells, escalated privileges, harvested authentication secrets and staged mailbox data across organiz…
Horizon3.ai has released a public proof-of-concept exploit for CVE-2026-106173, a critical flaw in Fortinet FortiSIEM that lets unauthenticated attackers turn an arbitrary file write into remote code execution. Researcher Zach Hanley published the technical analysis on October 20, following Fortinet's advisory FG-IR-26-180 of October 13. …
The paid WordPress SEO plugin Rank Math PRO was hit by a supply chain attack. Copies of version 3.0.123 downloaded from the vendor's site or delivered as updates between October 15, 2026 20:02 UTC and October 16, 2026 07:12 UTC contained malware (securityweek.com, thehackernews.com, bleepingcomputer.com). Any site that installed and activ…
The PHP security team released emergency fixes on October 21, 2026 for two critical core flaws, CVE-2026-109618 and CVE-2026-109619, nicknamed PHP2Shell. Both are rated CVSS v4.0 9.2 and allow unauthenticated remote code execution (RCE) as the web worker account. They can also expose process memory that may hold credentials and API keys (…
