CVE-2025-22900

Name: CVE-2025-22900
Creator: NVD / NIST
Published: 2025-04-15T19:16:06.987+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.45%

Last modified Jun 17, 2026

CVE-2025-22900 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Totolink N600R v4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the macCloneMac parameter in the setWanConfig function.. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

Totolink N600R v4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the macCloneMac parameter in the setWanConfig function.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.45%

36.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-121

Affected Software

Vendor	Product	Versions
Totolink	N600r Firmware	4.3.0cu.7647_b20210106

References

https://github.com/xyqer1/TOTOLINK-N600R-setWanConfig-StackOverflowExploit, Third Party Advisory

Timeline

Published: Apr 15, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-22900?

Totolink N600R v4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the macCloneMac parameter in the setWanConfig function.

How severe is CVE-2025-22900?

CVE-2025-22900 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.

How do I fix CVE-2025-22900?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-22900?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST