I explain cybersecurity news, active attacks, privacy, surveillance technology, vulnerabilities, and OSINT in plain English, then give my independent analysis.
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Actively exploited vulnerabilities
Current entries from CISA’s official Known Exploited Vulnerabilities catalog. These are confirmed weaknesses attackers have used, not simulated attack-map traffic.
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ACTIVE EXPLOITATION
CVE-2026-102764: BeyondTrust Remote Support
BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability
BeyondTrust Remote Support contains an authentication bypass by spoofing vulnerability that could allow a remote attacker to perform file operations on the appliance.
FortiOS, FortiPAM, FortiProxy, and FortiSwitchManager contain a path traversal vulnerability that may allow an authenticated attacker with admin profile and at least read-write permissions to write or delete arbitrary files via specific CLI commands.
ACTIVE EXPLOITATION
CVE-2026-21589: Atlassian Multiple Products
Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability
Multiple Atlassian products (Bitbucket Data Center ,Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center, Crowd Data Center, Crucible and Fisheye) contain a files or directories accessible to external parties vulnerability which could allow an unauthenticated attacker to access specific files within the web application root directory in affected versions.
ACTIVE EXPLOITATION
CVE-2026-105134: Ahsay AhsayCBS
Ahsay AhsayCBS Command Injection Vulnerability
Ahsay AhsayCBS contains a command injection vulnerability that could allow a remote attacker to execute operating system commands via manipulation of the random parameter in the Replication Receiver component’s /rps/api/json/UpdateReceivers.do endpoint. This vulnerability can be chained with CVE-2026-105133.
Cisco Secure Email Gateway contains a relative path traversal vulnerability that could allow an unauthenticated, remote attacker to write arbitrary files on the underlying operating system.
Ahsay AhsayCBS contains an improper authentication vulnerability that could allow a remote attacker to bypass authentication via manipulation of the random parameter in the API component’s checkSysPwd function. This vulnerability can be chained with CVE-2026-105134.
BeyondTrust Remote Support zero-day exploited before patch, Google says
A suspected China-linked espionage group exploited CVE-2026-102764 in BeyondTrust Remote Support before the flaw was disclosed. Self-hosted customers must patch immediately and investigate prior exposure because upgrading alone cannot remove an existing compromise.