CVE-2025-50635: A null pointer dereference vulnerability was discovered in Netis WF2780 v2.2.35445

This week

HIGH 7.5REMOTEMITIGATE

CVE-2025-50635 is a high-severity flaw (CVSS 7.5) affecting wf2780 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-476
Published	2025-08-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: netis-systems

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-13 15:15 UTCPublished CVE record published
2026-06-17 09:35 UTCUpdated Record last modified

netis-systems wf2780 firmware MITIGATE

Affected: 2.2.35445

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2.35445

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-50635?

wf2780 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-50635 being exploited?

CVE-2025-50635 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-50635 affect?

CVE-2025-50635 affects wf2780 firmware. Severity is high (CVSS 7.5). 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 va

How urgent is CVE-2025-50635?

Priority 45/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-25851 HIGH 8.0 MITIGATE Netis WF2780 v2.1.40144 was discovered to contain a command injection vulnerability via the config_sequence pa
CVE-2024-25850 CRITICAL 9.8 MITIGATE Netis WF2780 v2.1.40144 was discovered to contain a command injection vulnerability via the wps_ap_ssid5g para

References

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