Back to CVE-2021-20316
How to verify CVE-2021-20316
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 12 NVT checks for CVE-2021-20316. 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='1.3.6.1.4.1.25623.1.0.147401' details='1'/>" NVT OIDs (12)
1.3.6.1.4.1.25623.1.0.147401since 2026-06-251.3.6.1.4.1.25623.1.0.819669since 2026-06-251.3.6.1.4.1.25623.1.0.854470since 2026-06-251.3.6.1.4.1.25623.1.1.10.2022.0054since 2026-06-251.3.6.1.4.1.25623.1.1.11.2022.2074since 2026-06-251.3.6.1.4.1.25623.1.1.14.2022.2074since 2026-06-251.3.6.1.4.1.25623.1.1.15.2022.2074since 2026-06-251.3.6.1.4.1.25623.1.1.4.2022.0283.1since 2026-06-251.3.6.1.4.1.25623.1.1.4.2022.0323.1since 2026-06-251.3.6.1.4.1.25623.1.1.5.2023.032since 2026-06-25
+ 2 more NVTs
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