VulnSocial

CVE-2026-33280Disclosure(buffalo / fs-m1266)

LOWCVSS 9.8 · CRITICAL

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

buffalo CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-912

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • fs-m1266
  • fs-m1266_firmware
  • fs-s1266
  • fs-s1266_firmware

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Vendors
buffalo
Products
fs-m1266fs-m1266_firmwarefs-s1266fs-s1266_firmwarevr-u300wvr-u300w_firmwarevr-u500xvr-u500x_firmwarewapm-1266rwapm-1266r_firmware

1 version affected across 92 products

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-03-27: 2Technical Details · 2026-03-27: 203-27
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    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, resulting in … https://www.cve.org/CVERecord?id=CVE-2026-33280

    Post summary

    The post announces CVE-2026-33280, a hidden functionality flaw in BUFFALO Wi‑Fi routers that could let attackers reach debugging features; no exploit evidence, PoC, or patch information is provided.

    0000083
    56.9K followersView on X
  • CyberDudeBivash® | Global Cybersecurity Company@cyberbivash
    Disclosure

    🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-33280 - Buffalo Wi-Fi Router OS Command Injection Vulnerability Intel Report: https://ift.tt/Giuzs9e

    Post summary

    An alert announces a new OS command injection flaw (CVE-2026-33280) in Buffalo Wi-Fi routers and directs readers to an Intel report for additional details.

    0000034
    284 followersView on X
CPE platform detail92 entries

92 of 92 entries

PartVendorProductVersionTarget SWTarget HW
HWbuffalofs-m1266---
OSbuffalofs-m1266_firmware---
HWbuffalofs-s1266---
OSbuffalofs-s1266_firmware---
HWbuffalovr-u300w---
OSbuffalovr-u300w_firmware---
HWbuffalovr-u500x---
OSbuffalovr-u500x_firmware---
HWbuffalowapm-1266r---
OSbuffalowapm-1266r_firmware---
HWbuffalowapm-1266wdpr---
OSbuffalowapm-1266wdpr_firmware---
HWbuffalowapm-1266wdpra---
OSbuffalowapm-1266wdpra_firmware---
HWbuffalowapm-1750d---
OSbuffalowapm-1750d_firmware---
HWbuffalowapm-2133r---
OSbuffalowapm-2133r_firmware---
HWbuffalowapm-2133tr---
OSbuffalowapm-2133tr_firmware---
HWbuffalowapm-ax4r---
OSbuffalowapm-ax4r_firmware---
HWbuffalowapm-ax8r---
OSbuffalowapm-ax8r_firmware---
HWbuffalowapm-axetr---
OSbuffalowapm-axetr_firmware---
HWbuffalowaps-1266---
OSbuffalowaps-1266_firmware---
HWbuffalowaps-ax4---
OSbuffalowaps-ax4_firmware---
HWbuffalowcr-1166dhpl---
OSbuffalowcr-1166dhpl_firmware---
HWbuffalowem-1266---
OSbuffalowem-1266_firmware---
HWbuffalowem-1266wp---
OSbuffalowem-1266wp_firmware---
HWbuffalowrm-d2133hp---
OSbuffalowrm-d2133hp_firmware---
HWbuffalowrm-d2133hs---
OSbuffalowrm-d2133hs_firmware---
HWbuffalowsr3600be4-kh---
OSbuffalowsr3600be4-kh_firmware---
HWbuffalowsr3600be4p---
OSbuffalowsr3600be4p_firmware---
HWbuffalowtr-m2133hp---
OSbuffalowtr-m2133hp_firmware---
HWbuffalowtr-m2133hs---
OSbuffalowtr-m2133hs_firmware---
HWbuffalowxr-1750dhp---
HWbuffalowxr-1750dhp2---
OSbuffalowxr-1750dhp2_firmware---
OSbuffalowxr-1750dhp_firmware---
HWbuffalowxr-1900dhp---
HWbuffalowxr-1900dhp2---
OSbuffalowxr-1900dhp2_firmware---
HWbuffalowxr-1900dhp3---
OSbuffalowxr-1900dhp3_firmware---
OSbuffalowxr-1900dhp_firmware---
HWbuffalowxr-5950ax12---
OSbuffalowxr-5950ax12_firmware---
HWbuffalowxr-6000ax12b---
OSbuffalowxr-6000ax12b_firmware---
HWbuffalowxr-6000ax12p---
OSbuffalowxr-6000ax12p_firmware---
HWbuffalowxr-6000ax12s---
OSbuffalowxr-6000ax12s_firmware---
HWbuffalowxr18000be10p---
OSbuffalowxr18000be10p_firmware---
HWbuffalowzr-1166dhp---
HWbuffalowzr-1166dhp2---
OSbuffalowzr-1166dhp2_firmware---
OSbuffalowzr-1166dhp_firmware---
HWbuffalowzr-1750dhp---
HWbuffalowzr-1750dhp2---
OSbuffalowzr-1750dhp2_firmware---
OSbuffalowzr-1750dhp_firmware---
HWbuffalowzr-600dhp---
HWbuffalowzr-600dhp2---
OSbuffalowzr-600dhp2_firmware---
HWbuffalowzr-600dhp3---
OSbuffalowzr-600dhp3_firmware---
OSbuffalowzr-600dhp_firmware---
HWbuffalowzr-900dhp---
HWbuffalowzr-900dhp2---
OSbuffalowzr-900dhp2_firmware---
OSbuffalowzr-900dhp_firmware---
HWbuffalowzr-s1750dhp---
OSbuffalowzr-s1750dhp_firmware---
HWbuffalowzr-s600dhp---
OSbuffalowzr-s600dhp_firmware---
HWbuffalowzr-s900dhp---
OSbuffalowzr-s900dhp_firmware---

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