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How to verify CVE-2020-8165

Confirm whether your systems are actually affected — run the exact detection check below (Nuclei command or OpenVAS NVT). Detection only; it does not exploit.

How to verify this vulnerability

Scanner data tells you how to confirm whether your systems are actually affected — not just that the CVE exists. Run a Nuclei template against your target for a yes/no answer in seconds.

What's a Nuclei template? Nuclei is a free, open-source scanner. A template is a small YAML rule that probes a target and reports whether it's vulnerable. Runs locally, no agent.
1 · AUTOMATEDDetection command
nuclei -t CVE-2020-8165.yaml -u https://your-target -rl 50 -timeout 10

Community template — download the YAML from GitHub first, then run the command against your own host.

1 Nuclei template
  • criticalAI-generatedhttpRails Deserialization RCE (CVE-2020-8165)GitHub ↗

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This template is on GitHub already — an account lets you search and filter every CVE that has one, not just this CVE.

Nuclei References

Verify with OpenVAS

Greenbone/OpenVAS ships 20 NVT checks for CVE-2020-8165. OpenVAS detects this CVE by NVT OID — enable the NVT in your scan config, or confirm it is in your feed with the query below.

Confirm the NVT is in your feed (GMP)
gvm-cli socket --xml "<get_nvts nvt_oid='1.3.6.1.4.1.25623.1.0.113709' details='1'/>"
NVT OIDs (20)
  • 1.3.6.1.4.1.25623.1.0.113709since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.113712since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.704766since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.853496since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.853499since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.892251since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.892282since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.1.1.2020.4766since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.1.2.2020.2251since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.1.2.2020.2282since 2026-06-25

+ 10 more NVTs

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