Author Archives: Onsite Computing, Inc.

Pre-Auth Exploit Chains Found in Commvault Could Enable Remote Code Execution Attacks

Commvault has released updates to address four security gaps that could be exploited to achieve remote code execution on susceptible instances. The list of vulnerabilities, identified in Commvault versions before 11.36.60, is as follows – CVE-2025-57788 (CVSS score: 6.9) – A vulnerability in a known login mechanism allows unauthenticated attackers to execute API calls without […]

Cybercriminals Deploy CORNFLAKE.V3 Backdoor via ClickFix Tactic and Fake CAPTCHA Pages

Threat actors have been observed leveraging the deceptive social engineering tactic known as ClickFix to deploy a versatile backdoor codenamed CORNFLAKE.V3. Google-owned Mandiant described the activity, which it tracks as UNC5518, as part of an access-as-a-service scheme that employs fake CAPTCHA pages as lures to trick users into providing initial access to their systems, which […]

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