Vulnerability-Lookup

CVE-2026-39907 (GCVE-0-2026-39907)

Vulnerability from cvelistv5 – Published: 2026-04-14 21:21 – Updated: 2026-05-08 14:08

Title

Unisys WebPerfect Image Suite 3.0 NTLMv2 Hash Leakage via WCF SOAP

Summary

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.

Severity

7 (High)


                        
                          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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-73 - External Control of File Name or Path

Assigner

VulnCheck

References

3 references

URL	Tags
https://gist.github.com/VAMorales/be3e4ed472c5179…	technical-descriptionexploit
https://www.unisys.com/solutions/cai/applications/	product
https://www.vulncheck.com/advisories/unisys-webpe…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Unisys	WebPerfect Image Suite	Affected: 3.0.3960.22810 (custom) Affected: 3.0.3960.22604 (custom)

Date Public

2026-04-15 00:00

Credits

Victor A. Morales, Senior Pentester Team Leader, GM Sectec, Corp. VulnCheck

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-39907

Vulnerability from fkie_nvd - Published: 2026-04-14 22:16 - Updated: 2026-06-17 10:42

Severity

10.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Summary

References

URL	Tags
disclosure@vulncheck.com	https://gist.github.com/VAMorales/be3e4ed472c51794493c1256cce16129	Exploit, Third Party Advisory
disclosure@vulncheck.com	https://www.unisys.com/solutions/cai/applications/	Product
disclosure@vulncheck.com	https://www.vulncheck.com/advisories/unisys-webperfect-image-suite-ntlmv2-hash-leakage-via-wcf-soap	Third Party Advisory

Impacted products

	Vendor	Product	Version
	unisys	webperfect_image_suite	3.0.3960.22604
	unisys	webperfect_image_suite	3.0.3960.22810

JSON

To clipboard

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      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-39907",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-15T17:34:32.113227Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-14T22:16:32.340",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://gist.github.com/VAMorales/be3e4ed472c51794493c1256cce16129"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Product"
      ],
      "url": "https://www.unisys.com/solutions/cai/applications/"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.vulncheck.com/advisories/unisys-webperfect-image-suite-ntlmv2-hash-leakage-via-wcf-soap"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-73"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-8JPV-7GWW-9R9J

Vulnerability from github – Published: 2026-04-15 00:31 – Updated: 2026-05-06 15:32

Details

Severity

10.0 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

7.0 (High)


                  
                    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

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2026-39907"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-73"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-14T22:16:32Z",
    "severity": "HIGH"
  },
  "details": "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\u0027s 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.",
  "id": "GHSA-8jpv-7gww-9r9j",
  "modified": "2026-05-06T15:32:33Z",
  "published": "2026-04-15T00:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39907"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/VAMorales/be3e4ed472c51794493c1256cce16129"
    },
    {
      "type": "WEB",
      "url": "https://www.unisys.com/solutions/cai/applications"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/unisys-webperfect-image-suite-ntlmv2-hash-leakage-via-wcf-soap"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-39907 (GCVE-0-2026-39907)

FKIE_CVE-2026-39907

GHSA-8JPV-7GWW-9R9J

Tags

Sightings

Nomenclature