High severity · published Oct 31, 2025
CVE-2025-63459
Totolink A7000R v9.1.0u.6115_B20201022 was discovered to contain a stack overflow via the ssid5g parameter in the sub_421CF0 function
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
Totolink A7000R v9.1.0u.6115_B20201022 was discovered to contain a stack overflow via the ssid5g parameter in the sub_421CF0 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.
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)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
A7000r Firmware · Totolink
9.1.0u.6115_b20201022 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-63459
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-63459
Exploit
https://github.com/0-fool/VulnbyCola/blob/main/TOTOLINK/A7000/5/1.md
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