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Back to CVE-2020-27839

How to verify CVE-2020-27839

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 9 NVT checks for CVE-2020-27839. 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='1.3.6.1.4.1.25623.1.0.844993' details='1'/>"
NVT OIDs (9)
  • 1.3.6.1.4.1.25623.1.0.844993since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.853602since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.879032since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.10.2021.0126since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.12.2021.4998.1since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.18.1.2024.11652.1since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.4.2021.1108.1since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.4.2021.1472.1since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.4.2021.1473.1since 2026-06-25
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