Is CVE-2023-54405 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2023-54405 being exploited in the wild.

How severe is CVE-2023-54405?

Critical severity, with a CVSS score of 9.8, published 2 October 2026.

Is there a fix for CVE-2023-54405?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2023-54405 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2023-54405?

Check whether you run H3C CVM. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2023-54405: H3C CVM unauthenticated arbitrary file upload

CVE-2023-54405 · Severity: critical · CVSS 9.8 · Published 2026-10-02

H3C CVM is a cloud virtualization management platform for corporate IT infrastructure. A flaw in the file upload endpoint allows unauthenticated attackers to upload malicious files without authentication, then execute arbitrary code on the server. This gives attackers full control over the cloud infrastructure running the product.

Vendors: H3C.

Quick answers

Is CVE-2023-54405 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2023-54405 being exploited in the wild.
How severe is CVE-2023-54405?: Critical severity, with a CVSS score of 9.8, published 2 October 2026.
Which products and versions are affected?: H3C CVM.
Is there a fix for CVE-2023-54405?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2023-54405 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2023-54405?: Check whether you run H3C CVM. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The /cas/fileUpload/upload endpoint in H3C CVM fails to validate the caller-supplied token parameter, permitting unauthenticated path traversal during file upload. No file type or destination restrictions are enforced, allowing attackers to write JSP files to web-accessible directories and trigger remote code execution. The vulnerability requires only network access and was first observed exploited in the wild on 2023-10-14.

Affected products

H3C CVM

Timeline

2023-10-14: disclosed: Exploitation evidence first observed by Shadowserver Foundation
2026-10-02: advisory

References

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