CVE Tools
Sign in
Back to CVE-2021-20208

How to verify CVE-2021-20208

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 26 NVT checks for CVE-2021-20208. 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='1.3.6.1.4.1.25623.1.0.818575' details='1'/>"
NVT OIDs (26)
  • 1.3.6.1.4.1.25623.1.0.818575since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.818590since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.818615since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.845396since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.853788since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.10.2021.0277since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.12.2022.5459.1since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.12.2025.7688.1since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.16.2021.1193since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.18.1.2024.10683.1since 2026-06-25

+ 16 more NVTs

New to OpenVAS? Greenbone documentation ↗
Confirmed exposed? That's one CVE on one host.
We check your whole external estate — hundreds of IPs and domains — for this and thousands more, on a schedule.
Scan my estate
Verify another CVE