Jinan USR-W610 up to 3.1.1.0 Telnet Service weak password

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 (≈)
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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.
9.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Jinan USR-W610 up to 3.1.1.0 and classified as critical. Affected by this issue is some unknown functionality of the component Telnet Service. This manipulation causes weak password. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is handled as CVE-2026-25715. The attack can only be done within the local network. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Jinan USR-W610 up to 3.1.1.0 and classified as critical. Affected by this vulnerability is an unknown part of the component Telnet Service. The manipulation with an unknown input leads to a weak password vulnerability. The CWE definition for the vulnerability is CWE-521. The product does not require that users should have strong passwords, which makes it easier for attackers to compromise user accounts. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The web management interface of the device allows the administrator username and password to be set to blank values. Once applied, the device permits authentication with empty credentials over the web management interface and Telnet service. This effectively disables authentication across all critical management channels, allowing any network-adjacent attacker to gain full administrative control without credentials.

The weakness was released by Abhishek Pandey as icsa-26-050-03. The advisory is shared at cisa.gov. This vulnerability is known as CVE-2026-25715 since 02/10/2026. The exploitation appears to be easy. The attack needs to be done within the local network. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/20/2026). MITRE ATT&CK project uses the attack technique T1552 for this issue.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

Support

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 9.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.5
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: Weak password
CWE: CWE-521
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

02/10/2026 CVE reserved
02/20/2026 +10 days Advisory disclosed
02/20/2026 +0 days VulDB entry created
02/20/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: icsa-26-050-03
Researcher: Abhishek Pandey
Status: Not defined

CVE: CVE-2026-25715 (🔒)
GCVE (CVE): GCVE-0-2026-25715
GCVE (VulDB): GCVE-100-347161

Entryinfo

Created: 02/20/2026 17:55
Changes: 02/20/2026 17:55 (65)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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