How to verify CVE-2021-28210

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 20 NVT checks for CVE-2021-28210. 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='1.3.6.1.4.1.25623.1.0.844904' details='1'/>"

NVT OIDs (20)

1.3.6.1.4.1.25623.1.0.844904since 2026-06-25
1.3.6.1.4.1.25623.1.0.853687since 2026-06-25
1.3.6.1.4.1.25623.1.0.892645since 2026-06-25
1.3.6.1.4.1.25623.1.1.11.2021.4198since 2026-06-25
1.3.6.1.4.1.25623.1.1.1.2.2021.2645since 2026-06-25
1.3.6.1.4.1.25623.1.1.12.2021.4923.1since 2026-06-25
1.3.6.1.4.1.25623.1.1.12.2024.7060.1since 2026-06-25
1.3.6.1.4.1.25623.1.1.16.2021.1251since 2026-06-25
1.3.6.1.4.1.25623.1.1.17.2023.0076since 2026-06-25
1.3.6.1.4.1.25623.1.1.17.2023.0279since 2026-06-25

+ 10 more NVTs

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