How to verify CVE-2026-4878

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 48 NVT checks for CVE-2026-4878. 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='1.3.6.1.4.1.25623.1.0.136782' details='1'/>"

NVT OIDs (48)

1.3.6.1.4.1.25623.1.0.136782since 2026-07-25
1.3.6.1.4.1.25623.1.1.10.2026.0221since 2026-06-25
1.3.6.1.4.1.25623.1.1.11.2026.12423since 2026-06-25
1.3.6.1.4.1.25623.1.1.11.2026.12441since 2026-06-25
1.3.6.1.4.1.25623.1.1.11.2026.13285since 2026-06-25
1.3.6.1.4.1.25623.1.1.11.2026.19130since 2026-06-25
1.3.6.1.4.1.25623.1.1.11.2026.19346since 2026-06-25
1.3.6.1.4.1.25623.1.1.12.2026.8193.1since 2026-06-25
1.3.6.1.4.1.25623.1.1.12.2026.8193.2since 2026-06-25
1.3.6.1.4.1.25623.1.1.14.2026.12423since 2026-06-25

+ 38 more NVTs

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