How to verify CVE-2021-36770

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 11 NVT checks for CVE-2021-36770. 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='1.3.6.1.4.1.25623.1.0.153661' details='1'/>"

NVT OIDs (11)

1.3.6.1.4.1.25623.1.0.153661since 2026-06-25
1.3.6.1.4.1.25623.1.0.817770since 2026-06-25
1.3.6.1.4.1.25623.1.0.845212since 2026-06-25
1.3.6.1.4.1.25623.1.0.879931since 2026-06-25
1.3.6.1.4.1.25623.1.1.10.2021.0527since 2026-06-25
1.3.6.1.4.1.25623.1.1.12.2021.5033.1since 2026-06-25
1.3.6.1.4.1.25623.1.1.16.2022.1549since 2026-06-25
1.3.6.1.4.1.25623.1.1.2.2022.2420since 2026-06-25
1.3.6.1.4.1.25623.1.1.2.2022.2433since 2026-06-25
1.3.6.1.4.1.25623.1.1.2.2022.2878since 2026-06-25

+ 1 more NVT

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