CVE-2026-88738: Unrestricted File Upload Vulnerability (CVSS 8.8)

Description

Jazzware RT1000 Edge webUI v. 20.0.1 contains an unrestricted file upload vulnerability in the upgrade package upload functionality. An attacker with administrative privileges can upload a server-side executable file. The uploaded file is stored in a web-accessible executable location and can be accessed directly over HTTP without authentication, resulting in remote code execution.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.24%

15.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

Vendor	Product	Versions
—	—	n/a

References

Timeline

Published: Sep 21, 2026
Last Modified: Sep 22, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-88738?

Jazzware RT1000 Edge webUI v. 20.0.1 contains an unrestricted file upload vulnerability in the upgrade package upload functionality. An attacker with administrative privileges can upload a server-side executable file. The uploaded file is stored in a web-accessible executable location and can be accessed directly over HTTP without authentication, resulting in remote code execution.

How severe is CVE-2026-88738?

CVE-2026-88738 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2026-88738?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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