CVE-2026-33280: Hidden functionality issue exists in BUFFALO Wi-Fi router products, which may allow an attacker to gain access to the product’s debugging functionality…

PriorityP264critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

0.38%

29.5th percentile

Hidden functionality issue exists in BUFFALO Wi-Fi router products, which may allow an attacker to gain access to the product’s debugging functionality, resulting in the execution of arbitrary OS commands.

Affected

40 ranges· showing 25

Vendor	Product	Version range	Fixed in
buffalo	fs-m1266_firmware	< 4.13	4.13
buffalo	fs-s1266_firmware	< 4.13	4.13
buffalo	vr-u300w_firmware	< 1.42	1.42
buffalo	vr-u500x_firmware	< 1.42	1.42
buffalo	wapm-1266r_firmware	< 1.42	1.42
buffalo	wapm-1266wdpr_firmware	< 1.42	1.42
buffalo	wapm-1266wdpra_firmware	< 1.42	1.42
buffalo	wapm-1750d_firmware	< 1.07	1.07
buffalo	wapm-2133r_firmware	< 1.42	1.42
buffalo	wapm-2133tr_firmware	< 1.42	1.42
buffalo	wapm-ax4r_firmware	< 1.42	1.42
buffalo	wapm-ax8r_firmware	< 1.42	1.42
buffalo	wapm-axetr_firmware	< 1.42	1.42
buffalo	waps-1266_firmware	< 1.42	1.42
buffalo	waps-ax4_firmware	< 1.42	1.42
buffalo	wcr-1166dhpl_firmware	< 1.01	1.01
buffalo	wem-1266_firmware	< 2.87	2.87
buffalo	wem-1266wp_firmware	< 2.87	2.87
buffalo	wrm-d2133hp_firmware	< 3.01	3.01
buffalo	wrm-d2133hs_firmware	< 3.01	3.01
buffalo	wsr3600be4-kh_firmware	< 6.02	6.02
buffalo	wsr3600be4p_firmware	< 5.02	5.02
buffalo	wtr-m2133hp_firmware	< 3.01	3.01
buffalo	wtr-m2133hs_firmware	< 3.01	3.01
buffalo	wxr-1750dhp2_firmware	< 2.63	2.63

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv4.08.6HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvdv3.07.2HIGHCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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