CVE intelligence and bounded remediation

CVE-2022-38650 — A remote unauthenticated insecure deserialization vulnerability exists in VMware Hyperic Server 5.8.6

Critical CVSS 10

A remote unauthenticated insecure deserialization vulnerability exists in VMware Hyperic Server 5.8.6. Exploitation of this vulnerability enables a malicious party to run arbitrary code or malware within Hyperic Server and the host operating system with the privileges of the Hyperic server process. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Severity
Critical
CVSS
10 (3.1)
Published
2022-11-12
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-502

Affected products

  • vmware / hyperic_server / 5.8.6

Matched remediation archetype

Unsafe deserialization and object reconstruction

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Check exposure

  • Inventory serialization formats accepted from requests, queues, caches, files, cookies, and cross-service messages.
  • Trace whether untrusted input can select classes, types, callbacks, constructors, or object hooks during decoding.
  • Identify signing, schema validation, trust-boundary, and compatibility settings for each decoder.

Remediate safely

  • Replace native object deserialization with a data-only format and explicit schema validation.
  • If replacement is not immediate, use a safe decoder with a minimal type allowlist and disable polymorphic or executable hooks.
  • Update the affected library and add inert tests for unknown types, extra fields, malformed nesting, and unsigned data.

Authoritative sources

Complete CVE record and remediation plan

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