CVE-2026-39906
Critical · 10.0CVSS
10.0
EPSS
0.9%
Published
Apr 14, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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