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Back to CVE-2021-1721

How to verify CVE-2021-1721

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 15 NVT checks for CVE-2021-1721. 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='1.3.6.1.4.1.25623.1.0.878958' details='1'/>"
NVT OIDs (15)
  • 1.3.6.1.4.1.25623.1.0.878958since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.878968since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.878973since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.878979since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.11.2021.0470since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.11.2021.0471since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.11.2021.0472since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.11.2021.0473since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.11.2021.0474since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.11.2021.0476since 2026-06-25

+ 5 more NVTs

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