CVE-2024-42547

Name: CVE-2024-42547
Creator: NVD / NIST
Published: 2024-08-12T19:15:17.03+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.63%

Last modified Jun 17, 2026

CVE-2024-42547 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the http_host parameter in the loginauth function.. EPSS estimates a 0.63% chance of exploitation in the next 30 days.

Description

TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the http_host parameter in the loginauth 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

0.63%

45.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Totolink	A3100r Firmware	4.1.2cu.5050_b20200504

References

https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3100R/loginauth.mdExploit, Third Party Advisory

Timeline

Published: Aug 12, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-42547?

TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the http_host parameter in the loginauth function.

How severe is CVE-2024-42547?

CVE-2024-42547 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.63% probability of exploitation in the next 30 days.

How do I fix CVE-2024-42547?

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-2024-42547?

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

Scan your code now

Source: NVD / NIST