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CVE Vulnerability Details :
CVE-2026-39906
PUBLISHED
More InfoOfficial Page
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
View Known Exploited Vulnerability (KEV) details
Published At-14 Apr, 2026 | 21:21
Updated At-14 May, 2026 | 16:06
Rejected At-
▼CVE Numbering Authority (CNA)
Unisys WebPerfect Image Suite 3.0 NTLMv2 Hash Leakage via .NET Remoting

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 Products
Vendor
Unisys
Product
WebPerfect Image Suite
Default Status
unknown
Versions
Affected
  • 3.0.3960.22810 (custom)
  • 3.0.3960.22604 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-441Unintended Proxy or Intermediary ('Confused Deputy')
Type: CWE
CWE ID: CWE-441
Description: Unintended Proxy or Intermediary ('Confused Deputy')
Metrics
VersionBase scoreBase severityVector
4.07.0HIGH
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
Version: 4.0
Base score: 7.0
Base severity: HIGH
Vector:
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Victor A. Morales, Senior Pentester Team Leader, GM Sectec, Corp.
coordinator
VulnCheck
Timeline
EventDate
VulnCheck, as the third-party coordinator and intermediary, initiated outreach to Unisys and other potentially-related entities.2025-12-15 17:00:00
Event: VulnCheck, as the third-party coordinator and intermediary, initiated outreach to Unisys and other potentially-related entities.
Date: 2025-12-15 17:00:00
Replaced By
Rejected Reason
References
HyperlinkResource
https://gist.github.com/VAMorales/be3e4ed472c51794493c1256cce16129
technical-description
exploit
https://www.unisys.com/solutions/cai/applications/
product
https://www.vulncheck.com/advisories/unisys-webperfect-image-suite-ntlmv2-hash-leakage-via-net-remoting
third-party-advisory
Hyperlink: https://gist.github.com/VAMorales/be3e4ed472c51794493c1256cce16129
Resource:
technical-description
exploit
Hyperlink: https://www.unisys.com/solutions/cai/applications/
Resource:
product
Hyperlink: https://www.vulncheck.com/advisories/unisys-webperfect-image-suite-ntlmv2-hash-leakage-via-net-remoting
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found