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CVE-2025-10035 is an unsafe deserialization vulnerability in the License Servlet of Fortra GoAnywhere MFT. A malicious license response containing a validly forged signature can cause the application to deserialize an arbitrary attacker-controlled object, potentially resulting in command injection and remote code execution. The vulnerable processing occurs in BundleWorker.verify, where SignedObject.getObject() deserializes attacker-controlled content after signature verification. A technical analysis identified an associated access-control bypass that allows unauthenticated requests to obtain a license request token and reach license-response processing. Affected releases include GoAnywhere MFT 7.8.x before 7.8.4 and 7.6.x before Sustain Release 7.6.3. The vulnerability has been exploited in Medusa ransomware campaigns.
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Patch, then assume compromise.
No valid public exploits. Mallory filtered out 4 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
378 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An insecure deserialization vulnerability in Fortra GoAnywhere that the content says Medusa exploited as part of initial access activity.
A maximum-severity vulnerability in Fortra GoAnywhere that the report says Medusa actors tend to exploit.
A GoAnywhere MFT vulnerability that Microsoft says Storm-1175 has exploited.
A critical Fortra GoAnywhere vulnerability attributed to Storm-1175 exploitation to facilitate Medusa ransomware deployment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.