High severity · published Apr 29, 2021
CVE-2021-20091
The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 do not properly sanitize user input
8.8
CVSS
8.5%
EPSS
No
On KEV
Description
The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 do not properly sanitize user input. An authenticated remote attacker could leverage this vulnerability to alter device configuration, potentially gaining remote code execution.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)8.5% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WF
Wsr-2533dhp3-bk Firmware · Buffalo
through 1.24 · source: NVD
WF
Wsr-2533dhpl2-bk Firmware · Buffalo
through 1.02 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20091
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-20091
Third Party Advisory
https://www.tenable.com/security/research/tra-2021-13
More from Wsr-2533dhp3-bk Firmware
9.8
CVE-2021-20090
Arcadyan Buffalo Firmware Path Traversal Vulnerability
7.5
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 access to sensitive information from an…