CVE-2026-9457

Name: CVE-2026-9457
Creator: NVD / NIST
Published: 2026-05-25T14:16:28.683+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.9/10EPSS 2.09%

Last modified Jun 17, 2026

CVE-2026-9457 is a high-severity vulnerability rated 8.9/10 on the CVSS scale. A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function UploadFirmwareFile of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. EPSS estimates a 2.09% chance of exploitation in the next 30 days.

Description

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function UploadFirmwareFile of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. This manipulation of the argument FileName causes os command injection. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.

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

CVSS 4.0

8.9/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

2.09%

79.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published: May 25, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-9457?

How severe is CVE-2026-9457?

CVE-2026-9457 has a CVSS score of 8.9/10 (HIGH severity). The EPSS model estimates a 2.09% probability of exploitation in the next 30 days.

How do I fix CVE-2026-9457?

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-2026-9457?

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

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Source: NVD / NIST