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Back to CVE-2021-28453

How to verify CVE-2021-28453

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 13 NVT checks for CVE-2021-28453. 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='1.3.6.1.4.1.25623.1.0.817981' details='1'/>"
NVT OIDs (13)
  • 1.3.6.1.4.1.25623.1.0.817981since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.817982since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.817983since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.817984since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.817985since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.817986since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.817987since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.817989since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.817991since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.817992since 2026-06-25

+ 3 more NVTs

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