High severity · published Oct 22, 2025
CVE-2025-60335
A NULL pointer dereference in the main function of TOTOLINK N600R v4.3.0cu.7866_B20220506 allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request
7.5
CVSS
2.1%
EPSS
No
On KEV
Description
A NULL pointer dereference in the main function of TOTOLINK N600R v4.3.0cu.7866_B20220506 allows attackers to cause a Denial of Service (DoS) via a crafted HTTP 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)2.1% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NF
N600r Firmware · Totolink
4.3.0cu.7866_b20220506 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-60335
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-60335
Exploit
https://github.com/z472421519/BinaryAudit/blob/main/PoC/NPD/TOTOLink/main/CONTENT_LENGTH_MAX.md
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