CVE-2022-40966

Authentication bypass vulnerability in multiple Buffalo network devices allows a network-adjacent attacker to bypass authentication and access the device. The affected products/versions are as follows: WCR-300 firmware Ver. 1.87 and earlier, WHR-HP-G300N firmware Ver. 2.00 and earlier, WHR-HP-GN firmware Ver. 1.87 and earlier, WPL-05G300 firmware Ver. 1.88 and earlier, WRM-D2133HP firmware Ver. 2.85 and earlier, WRM-D2133HS firmware Ver. 2.96 and earlier, WTR-M2133HP firmware Ver. 2.85 and earlier, WTR-M2133HS firmware Ver. 2.96 and earlier, WXR-1900DHP firmware Ver. 2.50 and earlier, WXR-1900DHP2 firmware Ver. 2.59 and earlier, WXR-1900DHP3 firmware Ver. 2.63 and earlier, WXR-5950AX12 firmware Ver. 3.40 and earlier, WXR-6000AX12B firmware Ver. 3.40 and earlier, WXR-6000AX12S firmware Ver. 3.40 and earlier, WZR-300HP firmware Ver. 2.00 and earlier, WZR-450HP firmware Ver. 2.00 and earlier, WZR-600DHP firmware Ver. 2.00 and earlier, WZR-900DHP firmware Ver. 1.15 and earlier, WZR-1750DHP2 firmware Ver. 2.31 and earlier, WZR-HP-AG300H firmware Ver. 1.76 and earlier, WZR-HP-G302H firmware Ver. 1.86 and earlier, WEM-1266 firmware Ver. 2.85 and earlier, WEM-1266WP firmware Ver. 2.85 and earlier, WLAE-AG300N firmware Ver. 1.86 and earlier, FS-600DHP firmware Ver. 3.40 and earlier, FS-G300N firmware Ver. 3.14 and earlier, FS-HP-G300N firmware Ver. 3.33 and earlier, FS-R600DHP firmware Ver. 3.40 and earlier, BHR-4GRV firmware Ver. 2.00 and earlier, DWR-HP-G300NH firmware Ver. 1.84 and earlier, DWR-PG firmware Ver. 1.83 and earlier, HW-450HP-ZWE firmware Ver. 2.00 and earlier, WER-A54G54 firmware Ver. 1.43 and earlier, WER-AG54 firmware Ver. 1.43 and earlier, WER-AM54G54 firmware Ver. 1.43 and earlier, WER-AMG54 firmware Ver. 1.43 and earlier, WHR-300 firmware Ver. 2.00 and earlier, WHR-300HP firmware Ver. 2.00 and earlier, WHR-AM54G54 firmware Ver. 1.43 and earlier, WHR-AMG54 firmware Ver. 1.43 and earlier, WHR-AMPG firmware Ver. 1.52 and earlier, WHR-G firmware Ver. 1.49 and earlier, WHR-G300N firmware Ver. 1.65 and earlier, WHR-G301N firmware Ver. 1.87 and earlier, WHR-G54S firmware Ver. 1.43 and earlier, WHR-G54S-NI firmware Ver. 1.24 and earlier, WHR-HP-AMPG firmware Ver. 1.43 and earlier, WHR-HP-G firmware Ver. 1.49 and earlier, WHR-HP-G54 firmware Ver. 1.43 and earlier, WLI-H4-D600 firmware Ver. 1.88 and earlier, WS024BF firmware Ver. 1.60 and earlier, WS024BF-NW firmware Ver. 1.60 and earlier, WXR-1750DHP firmware Ver. 2.60 and earlier, WXR-1750DHP2 firmware Ver. 2.60 and earlier, WZR-1166DHP firmware Ver. 2.18 and earlier, WZR-1166DHP2 firmware Ver. 2.18 and earlier, WZR-1750DHP firmware Ver. 2.30 and earlier, WZR2-G300N firmware Ver. 1.55 and earlier, WZR-450HP-CWT firmware Ver. 2.00 and earlier, WZR-450HP-UB firmware Ver. 2.00 and earlier, WZR-600DHP2 firmware Ver. 1.15 and earlier, WZR-600DHP3 firmware Ver. 2.19 and earlier, WZR-900DHP2 firmware Ver. 2.19 and earlier, WZR-AGL300NH firmware Ver. 1.55 and earlier, WZR-AMPG144NH firmware Ver. 1.49 and earlier, WZR-AMPG300NH firmware Ver. 1.51 and earlier, WZR-D1100H firmware Ver. 2.00 and earlier, WZR-G144N firmware Ver. 1.48 and earlier, WZR-G144NH firmware Ver. 1.48 and earlier, WZR-HP-G300NH firmware Ver. 1.84 and earlier, WZR-HP-G301NH firmware Ver. 1.84 and earlier, WZR-HP-G450H firmware Ver. 1.90 and earlier, WZR-S1750DHP firmware Ver. 2.32 and earlier, WZR-S600DHP firmware Ver. 2.19 and earlier, and WZR-S900DHP firmware Ver. 2.19 and earlier.

• buffalo wcr-300 firmware (<= 1.87) • buffalo whr-hp-g300n firmware (<= 2.00) • buffalo whr-hp-gn firmware (<= 1.87) • buffalo wpl-05g300 firmware (<= 1.88) • buffalo wrm-d2133hp firmware (<= 2.85) • buffalo wrm-d2133hs firmware (<= 2.96) • buffalo wtr-m2133hp firmware (<= 2.85) • buffalo wtr-m2133hs firmware (<= 2.96) • buffalo wxr-1900dhp firmware (<= 2.50) • buffalo wxr-1900dhp2 firmware (<= 2.59) • buffalo wxr-1900dhp3 firmware (<= 2.63) • buffalo wxr-5950ax12 firmware (<= 3.40) • buffalo wxr-6000ax12b firmware (<= 3.40) • buffalo wxr-6000ax12s firmware (<= 3.40) • buffalo wzr-300hp firmware (<= 2.00) • buffalo wzr-450hp firmware (<= 2.00) • buffalo wzr-600dhp firmware (<= 2.00) • buffalo wzr-900dhp firmware (<= 1.15) • buffalo wzr-1750dhp2 firmware (<= 2.31) • buffalo wzr-hp-ag300h firmware (<= 1.76) • buffalo wzr-hp-g302h firmware (<= 1.86) • buffalo wem-1266 firmware (<= 2.85) • buffalo wem-1266wp firmware (<= 2.85) • buffalo wlae-ag300n firmware (<= 1.86) • buffalo fs-600dhp firmware (<= 3.40) • buffalo fs-g300n firmware (<= 3.14) • buffalo fs-hp-g300n firmware (<= 3.33) • buffalo fs-r600dhp firmware (<= 3.40) • buffalo bhr-4grv firmware (<= 2.00) • buffalo dwr-hp-g300nh firmware (<= 1.84) • buffalo dwr-pg firmware (<= 1.83) • buffalo hw-450hp-zwe firmware (<= 2.00) • buffalo wer-a54g54 firmware (<= 1.43) • buffalo wer-ag54 firmware (<= 1.43) • buffalo wer-am54g54 firmware (<= 1.43) • buffalo wer-amg54 firmware (<= 1.43) • buffalo whr-300 firmware (<= 2.00) • buffalo whr-300hp firmware (<= 2.00) • buffalo whr-am54g54 firmware (<= 1.43) • buffalo whr-amg54 firmware (<= 1.43) • buffalo whr-ampg firmware (<= 1.52) • buffalo whr-g firmware (<= 1.49) • buffalo whr-g300n firmware (<= 1.65) • buffalo whr-g301n firmware (<= 1.87) • buffalo whr-g54s firmware (<= 1.43) • buffalo whr-g54s-ni firmware (<= 1.24) • buffalo whr-hp-ampg firmware (<= 1.43) • buffalo whr-hp-g firmware (<= 1.49) • buffalo whr-hp-g54 firmware (<= 1.43) • buffalo wli-h4-d600 firmware (<= 1.88) • buffalo ws024bf firmware (<= 1.60) • buffalo ws024bf-nw firmware (<= 1.60) • buffalo wxr-1750dhp firmware (<= 2.60) • buffalo wxr-1750dhp2 firmware (<= 2.60) • buffalo wzr-1166dhp firmware (<= 2.18) • buffalo wzr-1166dhp2 firmware (<= 2.18) • buffalo wzr-1750dhp firmware (<= 2.30) • buffalo wzr2-g300n firmware (<= 1.55) • buffalo wzr-450hp-cwt firmware (<= 2.00) • buffalo wzr-450hp-ub firmware (<= 2.00) … and 15 more