High severity · published Feb 4, 2022
CVE-2021-45739
TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a stack overflow in the Form_Login function
7.5
CVSS
1.2%
EPSS
No
On KEV
Description
TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a stack overflow in the Form_Login function. This vulnerability allows attackers to cause a Denial of Service (DoS) via the flag parameter.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
A720r Firmware · Totolink
4.1.5cu.470_b20200911 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45739
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-45739
Exploit
https://github.com/pjqwudi/my_vuln/blob/main/totolink/vuln_5/5.md
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