Secuno
ENNL
Book demo

CVE-2026-39907

Unisys Webperfect Image Suite path traversal

10.0 CRITICALPublic exploitEPSS 0.99%
  1. Published14 Apr 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Unisys Webperfect Image Suite3.0.3960.22604 · 3.0.3960.22810

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-599768.1
ConvertX is a self-hosted file conversion service. Prior to 0.18.0, the ImageMagick…
CVE-2026-1058658.1
Payload is a free and open source headless content management system. In versions…
CVE-2026-976628.2
An argument injection issue in the diff scan operation in AWS security-agent-mcp-server…
CVE-2026-1032559.0
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1…
CVE-2026-159838.1
The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to…
CVE-2026-192538.7
The Cache Enabler WordPress plugin before 1.8.17 does not validate a URL before using…

Frequently asked

Is CVE-2026-39907 being actively exploited?

CVE-2026-39907 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.99%.

How severe is CVE-2026-39907?

CVE-2026-39907 has a CVSS 3.1 base score of 10.0, rated critical. EPSS estimates a 0.99% probability of exploitation.

Which products are affected by CVE-2026-39907?

Affected products include Unisys Webperfect Image Suite.

How do I fix CVE-2026-39907?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-39907 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.