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CVE-2026-39907— Unisys WebPerfect Image Suite 3.0 NTLMv2 Hash Leakage via WCF SOAP

Quick assessment

Affected
Unisys WebPerfect Image Suite
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Unisys WebPerfect Image Suite是美国Unisys公司的一个企业文档影像处理与管理系统。 Unisys WebPerfect Image Suite 3.0.3960.22810版本和3.0.3960.22604版本存在安全漏洞，该漏洞源于TCP端口1208上存在未经验证的WCF SOAP端点，可能导致远程攻击者触发SMB连接并泄露NTLMv2机器账户哈希。

AI Predicted 8.1 Difficulty: Easy EPSS 0.62% · P50

Affected Version Matrix 2

VendorProduct Version RangeStatus
Unisys WebPerfect Image Suite 3.0.3960.22810 affected
3.0.3960.22604 affected
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I. Basic Information for CVE-2026-39907

Vulnerability Information
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Vulnerability Title
Unisys WebPerfect Image Suite 3.0 NTLMv2 Hash Leakage via WCF SOAP
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
Unisys WebPerfect Image Suite 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Unisys WebPerfect Image Suite是美国Unisys公司的一个企业文档影像处理与管理系统。 Unisys WebPerfect Image Suite 3.0.3960.22810版本和3.0.3960.22604版本存在安全漏洞，该漏洞源于TCP端口1208上存在未经验证的WCF SOAP端点，可能导致远程攻击者触发SMB连接并泄露NTLMv2机器账户哈希。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unisys WebPerfect Image Suite 3.0.3960.22810 -

II. Public POCs for CVE-2026-39907

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III. Intelligence Information for CVE-2026-39907

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Proof of Concept for CVE-2026-39907 (1)

IV. Related Vulnerabilities

Same product: WebPerfect Image Suite
Same vendor: Unisys
Same weakness: CWE-73