Critical severity · published Dec 1, 2021
CVE-2021-33267
D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function FUN_80034d60 in…
9.8
CVSS
4%
EPSS
No
On KEV
Description
D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function FUN_80034d60 in /formStaticDHCP. This vulnerability is triggered via a crafted POST request.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.0% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
Dir-809 Firmware · Dlink
through 1.12wwb03 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33267
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33267
Exploit
https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln02
Vendor Advisory
https://www.dlink.com/en/security-bulletin/
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