CVE-2025-45790

Name: CVE-2025-45790
Creator: NVD / NIST
Published: 2025-05-08T20:15:30.327+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.67%

Last modified Jun 17, 2026

CVE-2025-45790 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. TOTOLINK A3100R V5.9c.1527 is vulnerable to Buffer Overflow via the priority parameter in the setMacQos interface of /lib/cste_modules/firewall.so.. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

Description

TOTOLINK A3100R V5.9c.1527 is vulnerable to Buffer Overflow via the priority parameter in the setMacQos interface of /lib/cste_modules/firewall.so.

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

0.67%

47.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Totolink	A3100r Firmware	5.9c.1527

References

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3100R-4/README.mdExploit

Timeline

Published: May 8, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-45790?

TOTOLINK A3100R V5.9c.1527 is vulnerable to Buffer Overflow via the priority parameter in the setMacQos interface of /lib/cste_modules/firewall.so.

How severe is CVE-2025-45790?

CVE-2025-45790 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.

How do I fix CVE-2025-45790?

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-2025-45790?

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

Scan your code now

Source: NVD / NIST