CVE-2026-86530

HIGHCVSS 7.2/10

Last modified

CVE-2026-86530 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. BUFFALO Wi-Fi products handle some web form input improperly to assemble command line strings internally. An administrative user may send a crafted HTTP request and execute an arbitrary OS command..

Description

BUFFALO Wi-Fi products handle some web form input improperly to assemble command line strings internally. An administrative user may send a crafted HTTP request and execute an arbitrary OS command.

Metrics

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
BUFFALO INC.WSR-300HP< Ver.2.55
BUFFALO INC.WEX-G300< Ver.1.71

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-86530?
BUFFALO Wi-Fi products handle some web form input improperly to assemble command line strings internally. An administrative user may send a crafted HTTP request and execute an arbitrary OS command.
How severe is CVE-2026-86530?
CVE-2026-86530 has a CVSS score of 7.2/10 (HIGH severity).
How do I fix CVE-2026-86530?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST