CVEvulnerability

CVE-2021-3512

8.8 HIGH Published 2021-04-28 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-04-28
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
8.3 HIGH — AV:A/AC:L/Au:N/C:C/I:C/A:C

Description

Improper access control vulnerability in Buffalo broadband routers (BHR-4GRV firmware Ver.1.99 and prior, DWR-HP-G300NH firmware Ver.1.83 and prior, HW-450HP-ZWE firmware Ver.1.99 and prior, WHR-300HP firmware Ver.1.99 and prior, WHR-300 firmware Ver.1.99 and prior, WHR-G301N firmware Ver.1.86 and prior, WHR-HP-G300N firmware Ver.1.99 and prior, WHR-HP-GN firmware Ver.1.86 and prior, WPL-05G300 firmware Ver.1.87 and prior, WZR-450HP-CWT firmware Ver.1.99 and prior, WZR-450HP-UB firmware Ver.1.99 and prior, WZR-HP-AG300H firmware Ver.1.75 and prior, WZR-HP-G300NH firmware Ver.1.83 and prior, WZR-HP-G301NH firmware Ver.1.83 and prior, WZR-HP-G302H firmware Ver.1.85 and prior, WZR-HP-G450H firmware Ver.1.89 and prior, WZR-300HP firmware Ver.1.99 and prior, WZR-450HP firmware Ver.1.99 and prior, WZR-600DHP firmware Ver.1.99 and prior, WZR-D1100H firmware Ver.1.99 and prior, FS-HP-G300N firmware Ver.3.32 and prior, FS-600DHP firmware Ver.3.38 and prior, FS-R600DHP firmware Ver.3.39 and prior, and FS-G300N firmware Ver.3.13 and prior) allows remote unauthenticated attackers to bypass access restriction and to start telnet service and execute arbitrary OS commands with root privileges via unspecified vectors.

Affected configurations

• buffalo bhr-4grv firmware (< 2.00) • buffalo dwr-hp-g300nh firmware (< 1.84) • buffalo hw-450hp-zwe firmware (< 2.00) • buffalo whr-300hp firmware (< 2.00) • buffalo whr-300 firmware (< 2.00) • buffalo whr-g301n firmware (< 1.87) • buffalo whr-hp-g300n firmware (< 2.00) • buffalo whr-hp-gn firmware (< 1.87) • buffalo wpl-05g300 firmware (< 1.88) • buffalo wzr-450hp-cwt firmware (< 2.00) • buffalo wzr-450hp-ub firmware (< 2.00) • buffalo wzr-hp-ag300h firmware (< 1.76) • buffalo wzr-hp-g300nh firmware (< 1.84) • buffalo wzr-hp-g301nh firmware (< 1.84) • buffalo wzr-hp-g302h firmware (< 1.86) • buffalo wzr-hp-g450h firmware (< 1.90) • buffalo wzr-300hp firmware (< 2.00) • buffalo wzr-450hp firmware (< 2.00) • buffalo wzr-600dhp firmware (< 2.00) • buffalo wzr-d1100h firmware (< 2.00) • buffalo fs-hp-g300n firmware (< 3.33) • buffalo fs-600dhp firmware (< 3.40) • buffalo fs-r600dhp firmware (< 3.40) • buffalo fs-g300n firmware (< 3.14)

References