Patch Forecast
Amber warning
Patch this week.

CVE-2023-54405

H3C CVM, the Cloud Virtualization Management component of the H3C CAS cloud platform, contains an…

Risk score
73/100
CVSS
9.8 v3.1
Exploit chance (30 days)
0.6%
Published
2 Oct 2026

Open in the live forecast Today's forecast

What to know

What it is
H3C CVM, the Cloud Virtualization Management component of the H3C CAS cloud platform, contains an unauthenticated arbitrary file upload vulnerability in the /cas/fileUpload/upload endpoint that allows remote attackers to write arbitrary files by manipulating the caller-supplied token parameter without restricting path…
Affected
See advisory
Fix
Apply the vendor's security update; see the linked advisory.
Exploitation
No known exploitation

Why it is Amber

  • CVSS 9.8 critical
  • Remotely exploitable without logging in

References

Original description

H3C CVM, the Cloud Virtualization Management component of the H3C CAS cloud platform, contains an unauthenticated arbitrary file upload vulnerability in the /cas/fileUpload/upload endpoint that allows remote attackers to write arbitrary files by manipulating the caller-supplied token parameter without restricting path traversal or file type. Attackers can exploit the path traversal in the token parameter to upload a malicious JSP file into a web-accessible directory and then request it to achieve remote code execution as the web-server user. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-14.

Last activity 2 Oct 2026. Patch Forecast updates every hour.