Cyber Resilience

CVE-2025-45835

HighPublic PoC

Published: 12 May 2025

Published
12 May 2025
Modified
09 July 2025
KEV Added
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Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0040 61.1th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-45835 is a high-severity NULL Pointer Dereference (CWE-476) vulnerability in Netis-Systems Wf2880 Firmware. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked in the top 38.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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…

more

potentially leading to a denial-of-service (DoS) attack.

CWE(s)
CWE-476

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

Null pointer dereference in router CGI script allows remote crash via manipulated CONTENT_LENGTH, enabling endpoint denial of service through application exploitation.

Affected Assets

netis-systems
wf2880 firmware
2.1.40207

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References