What is CVE-2025-45835?

CVE-2025-45835 is a high-severity vulnerability in Netis-Systems Wf2880, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2025-05-12.

How severe is CVE-2025-45835?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Netis-Systems Wf2880

CVE-2025-45835

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.

Published 2025-05-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (38.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Netis-Systems Wf2880
Netis-Systems Wf2880 Firmware — versions 2.1.40207

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

github.com/Chinesexilinyu/Netis-WF2880-cgitest.cgi-Null-Pointer-Dereference-Vul… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-45835?: CVE-2025-45835 is a high-severity vulnerability in Netis-Systems Wf2880, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2025-05-12.
How severe is CVE-2025-45835?: High severity. CVSS v3 base score is 7.5 out of 10.