Jazzware RT1000 Edge webUI v.

published 2026-09-21 last mo. modified 2026-09-22 last mo. also EUVD-2026-84184

cvss: 8.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits: 0; none known

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.

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CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: last mo. (2026-09-22)

Exploit prediction

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

lcybersec.notion.site https://lcybersec.notion.site/CVE-2026-88738-Unrestricted-file-upload-vulnerability-resulting-in-remote-code-execution-in-Jazzwa-3e06e8f484b5809e9eb3ffa705995d22 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness

CWE-434 Unrestricted Upload of File with Dangerous Type

References

lcybersec.notion.site /CVE-2026-88738-Unrestricted-file-upload-vulnerability-resulting-in-remote-code-execution-in-Jazzwa-3e06e8f484
exploit

Sources

CVE List CVE-2026-88738
NVD CVE-2026-88738

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