Critical severity10.0NVD Advisory· Published Apr 14, 2026· Updated May 6, 2026
CVE-2026-39907
CVE-2026-39907
Description
Unisys WebPerfect Image Suite versions 3.0.3960.22810 and 3.0.3960.22604 expose an unauthenticated WCF SOAP endpoint on TCP port 1208 that accepts unsanitized file paths in the ReadLicense action's LFName parameter, allowing remote attackers to trigger SMB connections and leak NTLMv2 machine-account hashes. Attackers can submit crafted SOAP requests with UNC paths to force the server to initiate outbound SMB connections, exposing authentication credentials that may be relayed for privilege escalation or lateral movement within the network.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:unisys:webperfect_image_suite:3.0.3960.22604:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:unisys:webperfect_image_suite:3.0.3960.22604:*:*:*:*:*:*:*
- cpe:2.3:a:unisys:webperfect_image_suite:3.0.3960.22810:*:*:*:*:*:*:*
- (no CPE)range: = 3.0.3960.22810, = 3.0.3960.22604
Patches
Vulnerability mechanics
References
3- gist.github.com/VAMorales/be3e4ed472c51794493c1256cce16129nvdExploitThird Party Advisory
- www.vulncheck.com/advisories/unisys-webperfect-image-suite-ntlmv2-hash-leakage-via-wcf-soapnvdThird Party Advisory
- www.unisys.com/solutions/cai/applications/nvdProduct
News mentions
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