CVE-2025-45866

Name: CVE-2025-45866
Creator: NVD / NIST
Published: 2025-05-13T15:15:58.84+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.30%

Last modified Jun 17, 2026

CVE-2025-45866 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the addrPoolEnd parameter in the formDhcpv6s interface.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

Description

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the addrPoolEnd parameter in the formDhcpv6s interface.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.30%

22.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Totolink	A3002r Firmware	4.0.0-b20230531.1404

References

https://github.com/Jiangxiazhe/IOT_hack/blob/main/TOTOLINK/A3002R/9/overflow.mdExploit, Third Party Advisory
https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/258/ids/36.htmlProduct

Timeline

Published: May 13, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-45866?

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the addrPoolEnd parameter in the formDhcpv6s interface.

How severe is CVE-2025-45866?

CVE-2025-45866 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2025-45866?

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-2025-45866?

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

Scan your code now

Source: NVD / NIST