Jazzware RT1000 Edge webUI 20.0.1 Upgrade Package Upload unrestricted upload

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3$0-$5k1.14-

Summaryinfo

A vulnerability was found in Jazzware RT1000 Edge webUI 20.0.1. It has been declared as critical. This issue affects some unknown processing of the component Upgrade Package Upload. Such manipulation leads to unrestricted upload. This vulnerability is uniquely identified as CVE-2026-88738. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Jazzware RT1000 Edge webUI 20.0.1. It has been rated as critical. Affected by this issue is some unknown processing of the component Upgrade Package Upload. The manipulation with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Jazzware RT1000 Edge webUI v. 20.0.1 contains an unrestricted file upload vulnerability in the upgrade package upload functionality. An authenticated attacker 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.

The advisory is available at lcybersec.notion.site. This vulnerability is handled as CVE-2026-88738 since 09/10/2026. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/21/2026). This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/10/2026 CVE reserved
09/21/2026 +11 days Advisory disclosed
09/21/2026 +0 days VulDB entry created
09/21/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: lcybersec.notion.site
Status: Confirmed

CVE: CVE-2026-88738 (🔒)
GCVE (CVE): GCVE-0-2026-88738
GCVE (VulDB): GCVE-100-408302

Entryinfo

Created: 09/21/2026 23:39
Changes: 09/21/2026 23:39 (52)
Complete: 🔍
Cache ID: 216::103

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