TI-2026-28779 Aliases CVE-2026-39906 GHSA-qhm2-fwj3-3r79

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

MEDIUM 40CWE-441Published 2026-04-14 · Updated 2026-05-14

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: Present
Impact type: —
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00687 52nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unisys	WebPerfect Image Suite	3.0.3960.22810; 3.0.3960.22604	—	No fix listed	CNA

WebPerfect Image Suite VendorUnisys Affected 3.0.3960.22810; 3.0.3960.22604 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:unisys:webperfect_image_suite:3.0.3960.22604:::::::*	3.0.3960.22604	Vulnerable	Unisys
cpe:2.3:a:unisys:webperfect_image_suite:3.0.3960.22810:::::::*	3.0.3960.22810	Vulnerable	Unisys

cpe:2.3:a:unisys:webperfect_image_suite:3.0.3960.22604:*:*:*:*:*:*:* Versions 3.0.3960.22604 Vulnerable ·Unisys
cpe:2.3:a:unisys:webperfect_image_suite:3.0.3960.22810:*:*:*:*:*:*:* Versions 3.0.3960.22810 Vulnerable ·Unisys

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-39906
2026-10-03 Alias added: GHSA-qhm2-fwj3-3r79

References

Exploit 1

https://gist.github.com/VAMorales/be3e4ed472c51794493c1256cce16129

Other 1

https://www.unisys.com/solutions/cai/applications/

TI-2026-28780 Unisys WebPerfect Image Suite 3.0 NTLMv2 Hash Leakage via WCF SOAP CVSS 4.0HIGH 7.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences