Is CVE-2026-39907 actively exploited?

No active exploitation of CVE-2026-39907 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-39907 be exploited remotely?

Yes. CVE-2026-39907 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-39907?

CVE-2026-39907 has a CVSS score of 7.0 (HIGH).

HOME VULNERABILITIESCVE-2026-39907

HIGH

CVE-2026-39907

CWE-73Published: April 14, 2026· Updated: Apr 17, 2026

7.0

CVSS v3.1

EPSS:0.32%probability of exploitation in 30 daysPercentile:54.9th

Official 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.

NVD Source

Technical Analysis

CVE-2026-39907 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

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