GoAnywhere MFT Vulnerability CVE-2025-10035: A CVSS 10.0 Mystery

watchTowr Labs dissected CVE-2025-10035, a critical vulnerability in Fortra's GoAnywhere MFT with a perfect CVSS score of 10.0. This deserialization vulnerability allows an attacker with a forged license response signature to deserialize arbitrary objects, potentially leading to command injection. While exploitation requires internet exposure, watchTowr Labs discovered an unauthenticated method to obtain a license request token, bypassing authentication. However, a signature verification hurdle remains. The analysis details the exploitation process, raising questions about potential undiscovered signature bypasses or leaked private keys. A detection tool is provided to help users identify vulnerable instances.
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