CVE-2023-51034

Name: CVE-2023-51034
Creator: NVD / NIST
Published: 2023-12-22T19:15:09.877+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.11%

Last modified Jun 17, 2026

CVE-2023-51034 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. TOTOlink EX1200L V9.3.5u.6146_B20201023 is vulnerable to arbitrary command execution via the cstecgi.cgi UploadFirmwareFile interface.. EPSS estimates a 1.11% chance of exploitation in the next 30 days.

Description

TOTOlink EX1200L V9.3.5u.6146_B20201023 is vulnerable to arbitrary command execution via the cstecgi.cgi UploadFirmwareFile interface.

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

1.11%

61.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Totolink	Ex1200l Firmware	9.3.5u.6146_b20201023

References

https://815yang.github.io/2023/12/12/ex1200l/totolink_ex1200L_UploadFirmwareFile/Exploit, Third Party Advisory
https://815yang.github.io/2023/12/12/ex1200l/totolink_ex1200L_UploadFirmwareFile/Exploit, Third Party Advisory

Timeline

Published: Dec 22, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-51034?

TOTOlink EX1200L V9.3.5u.6146_B20201023 is vulnerable to arbitrary command execution via the cstecgi.cgi UploadFirmwareFile interface.

How severe is CVE-2023-51034?

CVE-2023-51034 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.11% probability of exploitation in the next 30 days.

How do I fix CVE-2023-51034?

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-2023-51034?

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

Scan your code now

Source: NVD / NIST