CVE-2026-39907
Last modified
CVE-2026-39907 is a critical-severity vulnerability rated 10/10 on the CVSS scale. 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.. EPSS estimates a 0.62% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Unisys | Webperfect Image Suite | 3.0.3960.22604 |
| Unisys | Webperfect Image Suite | 3.0.3960.22810 |
References
- https://gist.github.com/VAMorales/be3e4ed472c51794493c1256cce16129Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-39907?
How severe is CVE-2026-39907?
How do I fix CVE-2026-39907?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-3990A security flaw has been discovered in CesiumGS CesiumJS up …4.3
- CVE-2026-39900Cacti is an open source performance and fault management fra…6.1
- CVE-2026-39901monetr is a budgeting application focused on planning for re…5.7
- CVE-2026-39903Simple Machines Forum 2.1 prior to commit 7d048f8 and 3.0 pr…7.1
- CVE-2026-39904Gophish through 0.12.1 contains a denial of service vulnerab…7.1
- CVE-2026-39906Unisys WebPerfect Image Suite versions 3.0.3960.22810 and 3.…10
- CVE-2026-39908OpenBullet2 through version 0.3.2 on Windows contains a cred…7.1
- CVE-2026-3991Symantec Data Loss Prevention Windows Endpoint, prior to 25.…7.8
- CVE-2026-39910STACKIT IaaS API contains a missing authorization check vuln…9.8
- CVE-2026-39911Hashgraph Guardian through version 3.5.1, fixed in commit 45…8.8
- CVE-2026-39912V2Board 1.6.1 through 1.7.4 and Xboard through 0.1.9 expose …9.1
- CVE-2026-39918Vvveb prior to 1.0.8.1 contains a code injection vulnerabili…9.8
Are you affected by CVE-2026-39907?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST