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CVE-2026-39906highCWE-441

Unisys WebPerfect Image Suite 3.0 NTLMv2 Hash Leakage via .NET Remoting

41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 7epss 0.7%
exploitation probability
0.7%top 51% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
Unisys WebPerfect Image Suite versions 3.0.3960.22810 and 3.0.3960.22604 expose a deprecated .NET Remoting TCP channel that allows remote unauthenticated attackers to leak NTLMv2 machine-account hashes by supplying a Windows UNC path as a target file argument through object-unmarshalling techniques. Attackers can capture the leaked NTLMv2 hash and relay it to other hosts to achieve privilege escalation or lateral movement depending on network configuration and patch level.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.