CVE-2021-20092

Wsr 2533dhpl2 Bk Firmware vulnerability

CVSS

7.5

EPSS

8.2%

EPSS pct

94th

Exploited

No known

The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 do not properly restrict access to sensitive information from an unauthorized actor.

Affected vendor

Buffalo

Affected product

Wsr 2533dhpl2 Bk Firmware

CVSS vector

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

Weakness type (CWE)

CWE-287 — Improper Authentication

Published

2021-04-29

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 8.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2021-20092

Confirm whether Buffalo Wsr 2533dhpl2 Bk Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-20092.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-20092

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-20092 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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