VIR Vulnerability Intelligence Relay

CVE-2021-20090

unknown KEV
Published 2021-11-03 · Modified 2021-11-03
CVSS v3
—
CVSS v2
—
VIR risk
1.5

Description

Arcadyan Buffalo firmware contains a path traversal vulnerability that could allow unauthenticated, remote attackers to bypass authentication and access sensitive information. This vulnerability affects multiple routers across several different vendors.

CISA KEV

Vendor
Arcadyan
Product
Buffalo Firmware
Due date
2021-11-17

Predictions

Exploit likelihood
99%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: cisa-kev — https://nvd.nist.gov/vuln/detail/CVE-2021-20090

Exploits

References

Verify integrity in audit chain (admin only). AS-IS.