Is CVE-2026-33280 actively exploited?

No active exploitation of CVE-2026-33280 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33280 be exploited remotely?

Yes. CVE-2026-33280 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-33280?

CVE-2026-33280 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-33280

CWE-912Published: March 27, 2026· Updated: Mar 31, 2026

9.8

CVSS v3.1

EPSS:0.07%probability of exploitation in 30 daysPercentile:21.9th

Official 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.

NVD Source

Technical Analysis

CVE-2026-33280 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

buffalo92 products

wcr-1166dhpl firmwarewcr-1166dhplwsr3600be4-kh firmwarewsr3600be4-khwsr3600be4p firmwarewsr3600be4pwxr-1750dhp firmwarewxr-1750dhpwxr-1750dhp2 firmwarewxr-1750dhp2wxr18000be10p firmwarewxr18000be10p+80 more

Source: NVD CPE · 92 total CPE entries