Buffalo vendor intelligence

Buffalo Known Exploited Vulnerabilities

Track evidence-backed exploitation affecting Buffalo products, including the gap beyond CISA KEV, confidence assessments, sensor observations, and practical response context.

Browse KEV feed
Total KEVs
2
Known exploited vulnerabilities affecting Buffalo products
In CISA KEV
1
Records also listed in the official catalog
Beyond CISA KEV
1
Additional exploited vulnerability absent from CISA KEV
Sensor Observed
0
Buffalo KEVs with sensor-observed exploitation activity

Review Buffalo exploitation against the products you run

One of the two exploited Buffalo vulnerabilities tracked by Previdian is not in CISA KEV.

50%
Covered by CISA
50%
Beyond CISA
2
Product families

Attested Buffalo vulnerabilities

2 known exploited vulnerabilities in this exploited-vulnerability portfolio. Search, then narrow it to official CISA coverage or the additional records Previdian tracks beyond the catalog.

How exploitation is verified
CVE / description Product Confidence CISA KEV Added
CVE-2021-20092

The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 do not properly restrict...

WSR-2533DHPL2, WSR-2533DHP3 High Beyond CISA 03 Oct 2025
CVE-2021-20090

A path traversal vulnerability in the web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <=...

Buffalo WSR-2533DHPL2, Buffalo WSR-2533DHP3 Confirmed In CISA 03 Nov 2021

Showing 2 of 2 on this page (2 Buffalo known exploited vulnerabilities).

Recurring weakness patterns

Limitation and authentication account for two mapped occurrences across this Buffalo KEV portfolio.

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