Back to CVE-2021-33621
How to verify CVE-2021-33621
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 49 NVT checks for CVE-2021-33621. 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='1.3.6.1.4.1.25623.1.0.822969' details='1'/>" NVT OIDs (49)
1.3.6.1.4.1.25623.1.0.822969since 2026-06-251.3.6.1.4.1.25623.1.0.822971since 2026-06-251.3.6.1.4.1.25623.1.0.822980since 2026-06-251.3.6.1.4.1.25623.1.0.833860since 2026-06-251.3.6.1.4.1.25623.1.1.10.2022.0454since 2026-06-251.3.6.1.4.1.25623.1.1.11.2023.3821since 2026-06-251.3.6.1.4.1.25623.1.1.11.2023.7025since 2026-06-251.3.6.1.4.1.25623.1.1.11.2024.1431since 2026-06-251.3.6.1.4.1.25623.1.1.11.2024.1576since 2026-06-251.3.6.1.4.1.25623.1.1.11.2024.3500since 2026-06-25
+ 39 more NVTs
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