CVE-2021-20090

A path traversal vulnerability in the web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 could allow unauthenticated remote attackers to bypass authentication.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.kb.cert.org/vuls/id/914124	Third Party Advisory US Government Resource
https://www.secpod.com/blog/arcadyan-based-routers-and-modems-under-active-exploitation/	Exploit Third Party Advisory
https://www.tenable.com/security/research/tra-2021-13	Exploit Third Party Advisory
https://www.kb.cert.org/vuls/id/914124	Third Party Advisory US Government Resource
https://www.secpod.com/blog/arcadyan-based-routers-and-modems-under-active-exploitation/	Exploit Third Party Advisory
https://www.tenable.com/security/research/tra-2021-13	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:buffalo:wsr-2533dhpl2-bk_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:buffalo:wsr-2533dhpl2-bk:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:buffalo:wsr-2533dhp3-bk_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:buffalo:wsr-2533dhp3-bk:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-04-29 15:15

Updated : 2025-03-19 20:56

NVD link : CVE-2021-20090

Mitre link : CVE-2021-20090

CVE.ORG link : CVE-2021-20090

JSON object : View

Products Affected

buffalo

wsr-2533dhp3-bk
wsr-2533dhpl2-bk
wsr-2533dhp3-bk_firmware
wsr-2533dhpl2-bk_firmware

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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