Is CVE-2026-9455 actively exploited?

No active exploitation of CVE-2026-9455 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-9455 be exploited remotely?

Yes. CVE-2026-9455 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-9455?

CVE-2026-9455 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-9455

CWE-77Published: May 25, 2026· Updated: May 26, 2026

9.8

CVSS v3.1

EPSS:0.89%probability of exploitation in 30 daysPercentile:75.8th

Official Description

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function UploadOpenVpnCert of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument FileName leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

NVD Source

Technical Analysis

CVE-2026-9455 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.