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Back to CVE-2021-20201

How to verify CVE-2021-20201

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

Verify with OpenVAS

Greenbone/OpenVAS ships 23 NVT checks for CVE-2021-20201. 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='1.3.6.1.4.1.25623.1.0.833548' details='1'/>"
NVT OIDs (23)
  • 1.3.6.1.4.1.25623.1.0.833548since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.853862since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.854923since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.10.2021.0405since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.11.2021.1924since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.14.2021.1924since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.15.2021.1924since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.16.2021.1233since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.18.1.2024.12406.1since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.18.1.2024.13045.1since 2026-06-25

+ 13 more NVTs

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