What is CVE-2026-71922?

CVE-2026-71922 is a high-severity vulnerability, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-08-24.

How severe is CVE-2026-71922?

High severity. CVSS v3 base score is 7.5 out of 10.

CVE-2026-71922

CVE-2026-71922

Multiple DrayTek VigorSwitch models contain a pre-authentication null pointer dereference vulnerability in the setget.cgi interface. The vulnerability is caused by missing validation when the pass field is absent. A remote attacker can trigger this vulnerability via a crafted request to crash the service and cause a denial of service.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-71922?: CVE-2026-71922 is a high-severity vulnerability, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-08-24.
How severe is CVE-2026-71922?: High severity. CVSS v3 base score is 7.5 out of 10.