BUFFALO WSR-1800AX4 weak password hash

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in BUFFALO WSR-1800AX4, WSR-1800AX4S, WSR-1800AX4B and WSR-1800AX4-KH. This impacts an unknown function. The manipulation leads to weak password hash. This vulnerability is referenced as CVE-2025-46413. The attack needs to be initiated within the local network. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in BUFFALO WSR-1800AX4, WSR-1800AX4S, WSR-1800AX4B and WSR-1800AX4-KH (version now known). It has been rated as problematic. This issue affects some unknown processing. The manipulation with an unknown input leads to a weak password hash vulnerability. Using CWE to declare the problem leads to CWE-916. The product generates a hash for a password, but it uses a scheme that does not provide a sufficient level of computational effort that would make password cracking attacks infeasible or expensive. Impacted is confidentiality. The summary by CVE is:

Use of password hash with insufficient computational effort issue exists in BUFFALO Wi-Fi router 'WSR-1800AX4 series'. When WPS is enabled, PIN code and/or Wi-Fi password may be obtained by an attacker.

The advisory is shared at buffalo.jp. The identification of this vulnerability is CVE-2025-46413 since 10/30/2025. The exploitation is known to be difficult. Access to the local network is required for this attack to succeed. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1552 for this issue.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-38245). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (jpcert): 🔒

CVSSv2info

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

Exploitinginfo

Class: Weak password hash
CWE: CWE-916 / CWE-326 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

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: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/30/2025 CVE reserved
11/07/2025 +8 days Advisory disclosed
11/07/2025 +0 days VulDB entry created
11/07/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: buffalo.jp
Status: Confirmed

CVE: CVE-2025-46413 (🔒)
GCVE (CVE): GCVE-0-2025-46413
GCVE (VulDB): GCVE-100-331505
EUVD: 🔒

Entryinfo

Created: 11/07/2025 11:10
Updated: 11/07/2025 11:29
Changes: 11/07/2025 11:10 (73), 11/07/2025 11:29 (1)
Complete: 🔍
Cache ID: 216::103

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

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