Jinan USR IOT Technology Limited USR-W610 RS232 485 to Wi-Fi Ethernet Converter 7.03T.07 Firmware Image hard-coded credentials

CVSS Meta Temp Score
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Jinan USR IOT Technology Limited USR-W610 RS232 485 to Wi-Fi Ethernet Converter 7.03T.07. It has been declared as critical. Affected by this issue is some unknown functionality of the component Firmware Image Handler. Executing a manipulation can lead to hard-coded credentials. The identification of this vulnerability is CVE-2026-7786. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Jinan USR IOT Technology Limited USR-W610 RS232 485 to Wi-Fi Ethernet Converter 7.03T.07. It has been declared as very critical. This vulnerability affects some unknown processing of the component Firmware Image Handler. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. The CWE definition for the vulnerability is CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Jinan USR IOT Technology Limited (PUSR) USR-W610 RS232/485 to Wi-Fi/Ethernet Converter device firmware contains plaintext administrative credentials embedded in the firmware image. These credentials can be extracted through firmware analysis and used to authenticate to device services.

The weakness was shared by Arun Mane and Omkar Mali as icsa-26-148-02. The advisory is shared for download at cisa.gov. This vulnerability was named CVE-2026-7786 since 05/04/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/30/2026). The MITRE ATT&CK project declares the attack technique as T1110.001.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-33374). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (icscert): 🔒

CVSSv2info

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

Exploitinginfo

Class: Hard-coded credentials
CWE: CWE-798 / CWE-259 / CWE-255
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

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

05/04/2026 CVE reserved
05/29/2026 +25 days Advisory disclosed
05/29/2026 +0 days VulDB entry created
05/30/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: icsa-26-148-02
Researcher: Arun Mane, Omkar Mali
Status: Not defined

CVE: CVE-2026-7786 (🔒)
GCVE (CVE): GCVE-0-2026-7786
GCVE (VulDB): GCVE-100-367324
EUVD: 🔒

Entryinfo

Created: 05/29/2026 21:03
Updated: 05/30/2026 12:56
Changes: 05/29/2026 21:03 (64), 05/30/2026 12:56 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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