How to fix CVE-2025-50635?

Within 30 days: Identify all affected systems running Netis WF2780 and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Is Null Pointer Dereference affected by CVE-2025-50635?

Organizations using Netis WF2780 face notable risk from CVE-2025-50635, a null pointer dereference vulnerability rated CVSS 7.5. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available, increasing the risk of exploitation.

CVE-2025-50635

HIGH

2025-08-13 [email protected]

7.5

CVSS 3.1

CVSS Vector

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

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:06 vuln.today

PoC Detected

Aug 15, 2025 - 19:25 vuln.today

Public exploit code

CVE Published

Aug 13, 2025 - 15:15 nvd

HIGH 7.5

Description

A null pointer dereference vulnerability was discovered in Netis WF2780 v2.2.35445. The vulnerability exists in the FUN_0048a728 function of the cgitest.cgi file. Attackers can trigger this vulnerability by controlling the CONTENT_LENGTH variable, causing the program to crash and potentially leading to a denial-of-service (DoS) attack.

Analysis

A null pointer dereference vulnerability was discovered in Netis WF2780 v2.2.35445. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical Context

This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. A null pointer dereference vulnerability was discovered in Netis WF2780 v2.2.35445. The vulnerability exists in the FUN_0048a728 function of the cgitest.cgi file. Attackers can trigger this vulnerability by controlling the CONTENT_LENGTH variable, causing the program to crash and potentially leading to a denial-of-service (DoS) attack. Affected products include: Netis-Systems Wf2780 Firmware.

Affected Products

Netis-Systems Wf2780 Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.1

CVSS: +38

POC: +20

CVE-2025-50635 vulnerability details – vuln.today

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CVE-2025-50635

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CVE-2025-50635

CVSS Vector

Lifecycle Timeline

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Description

Analysis

Technical Context

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External POC / Exploit Code