Medium 5.3Published Nov 7, 2025

CVE-2025-46413Use of password hash with insufficient computational effort issue exists in BUFFALO Wi-Fi router 'WSR-1800AX4 series'.

Updated under an hour ago (Oct 26, 2026, 10:20 PM ET)

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It affects BUFFALO INC. WSR-1800AX4 and 3 other products. Add what you run to find out whether that includes you.

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Every CVE for BUFFALO INC. WSR-1800AX4

Exploited in the last 30 days

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.

CVSS: 5.3 MEDIUM (v4.0, CNA)CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-916
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: jpcert
NVD analysis: Deferred
Record last updated: Nov 7, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

BUFFALO INC. WSR-1800AX4 buffalo:wsr_1800ax4 (from the name)	prior to Ver.1.09	CNA record
BUFFALO INC. WSR-1800AX4S buffalo:wsr_1800ax4s (from the name)	prior to Ver.1.11	CNA record
BUFFALO INC. WSR-1800AX4B buffalo:wsr_1800ax4b (from the name)	prior to Ver.1.11	CNA record
BUFFALO INC. WSR-1800AX4-KH buffalo:wsr_1800ax4_kh (from the name)	prior to Ver.1.19	CNA record

References

References

https://www.buffalo.jp/news/detail/20251107-01.html
https://jvn.jp/en/jp/JVN13754005/

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.