Critical severity · published Dec 22, 2021
CVE-2021-39306
A stack buffer overflow was discovered on Realtek RTL8195AM device before 2.0.10, it exists in the client code when an attacker sends a big size Authentication challenge text in…
9.8
CVSS
1.3%
EPSS
No
On KEV
Description
A stack buffer overflow was discovered on Realtek RTL8195AM device before 2.0.10, it exists in the client code when an attacker sends a big size Authentication challenge text in WEP security.
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)1.3% · higher than 70% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RF
Rtl8195am Firmware · Realtek
before 2.0.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39306
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-39306
Vendor Advisory
https://www.amebaiot.com/en/security_bulletin/cve-2021-39306/
Vendor Advisory
https://www.realtek.com
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