How to verify CVE-2026-27456

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 29 NVT checks for CVE-2026-27456. 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='1.3.6.1.4.1.25623.1.1.1.1.2026.6442' details='1'/>"

NVT OIDs (29)

1.3.6.1.4.1.25623.1.1.1.1.2026.6442since 2026-08-18
1.3.6.1.4.1.25623.1.1.12.2026.8702.1since 2026-09-02
1.3.6.1.4.1.25623.1.1.16.2026.2211since 2026-06-25
1.3.6.1.4.1.25623.1.1.17.3.2026.0135since 2026-07-23
1.3.6.1.4.1.25623.1.1.18.1.2026.10736.1since 2026-06-25
1.3.6.1.4.1.25623.1.1.18.1.2026.21028.1since 2026-07-15
1.3.6.1.4.1.25623.1.1.2.2026.2317since 2026-06-25
1.3.6.1.4.1.25623.1.1.2.2026.2360since 2026-06-25
1.3.6.1.4.1.25623.1.1.2.2026.2391since 2026-06-25
1.3.6.1.4.1.25623.1.1.2.2026.2420since 2026-06-25

+ 19 more NVTs

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