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Back to CVE-2020-21528

How to verify CVE-2020-21528

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 10 NVT checks for CVE-2020-21528. 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='1.3.6.1.4.1.25623.1.1.16.2023.1626' details='1'/>"
NVT OIDs (10)
  • 1.3.6.1.4.1.25623.1.1.16.2023.1626since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.17.2023.0329since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.2.2023.3188since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.2.2023.3223since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.2.2023.3253since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.2.2023.3281since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.5.2023.2277since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.5.2023.354since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.5.2.2023.2277since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.5.3.2023.354since 2026-06-25
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