CVE-2025-45835 — HIGH (7.5)

Vulnerability Description

A null pointer dereference vulnerability was discovered in Netis WF2880 v2.1.40207. The vulnerability exists in the FUN_004904c8 function of the cgitest.cgi file. Attackers can trigger this vulnerability by controlling the environment variable value CONTENT_LENGTH, causing the program to crash and potentially leading to a denial-of-service (DoS) attack.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Netis-Systems	Wf2880 Firmware	2.1.40207
Netis-Systems	Wf2880	-

Related Weaknesses (CWE)

CWE-476

References

https://github.com/Chinesexilinyu/Netis-WF2880-cgitest.cgi-Null-Pointer-DerefereExploitThird Party Advisory
https://github.com/Chinesexilinyu/Netis-WF2880-cgitest.cgi-Null-Pointer-DerefereExploitThird Party Advisory

FAQ

What is CVE-2025-45835?

CVE-2025-45835 is a vulnerability with a CVSS score of 7.5 (HIGH). A null pointer dereference vulnerability was discovered in Netis WF2880 v2.1.40207. The vulnerability exists in the FUN_004904c8 function of the cgitest.cgi file. Attackers can trigger this vulnerabil...

How severe is CVE-2025-45835?

CVE-2025-45835 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-45835?

Check the references section above for vendor advisories and patch information. Affected products include: Netis-Systems Wf2880 Firmware, Netis-Systems Wf2880.