What is CVE-2026-81455?

CVE-2026-81455 is a high-severity vulnerability in Dell Thinos 10, classified under Missing Authentication for Critical Function. CVSS score: 8.6/10. Published 2026-09-24.

How severe is CVE-2026-81455?

High severity. CVSS v3 base score is 8.6 out of 10.

Auth bypass in Dell Thinos 10

CVE-2026-81455

Dell ThinOS 10, versions prior to SecurityAddon_2605.10.2766_T10, contain a Missing Authentication for Critical Function vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Unauthorized access.

Vulnerability class: Broken Authentication

Published 2026-09-24 · last modified 2026-09-24.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Dell Thinos 10

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

www.dell.com/support/kbdoc/en-us/000506503/dsa-2026-404-security-update-for-del… (vendor-advisory)

Frequently asked questions

What is CVE-2026-81455?: CVE-2026-81455 is a high-severity vulnerability in Dell Thinos 10, classified under Missing Authentication for Critical Function. CVSS score: 8.6/10. Published 2026-09-24.
How severe is CVE-2026-81455?: High severity. CVSS v3 base score is 8.6 out of 10.