Dell ThinOS 10, versions prior to SecurityAddon_2605.10.2766_T10, contain a Missing Authentication for Critical Function vulnerability.

published 2026-09-24 45 d ago modified 2026-09-24 45 d ago also EUVD-2026-86397

cvss: 8.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 18%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

Dell ThinOS 10 SecurityAddon_2605.10.2766_T10

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 45 d ago (2026-09-24)

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

Affected products

Dell ThinOS 10

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality

References

dell.com /support/kbdoc/en-us/000506503/dsa-2026-404-security-update-for-dell-thinos-10-for-multiple-vulnerabilities
vendor-advisory

Sources

CVE List CVE-2026-81455
NVD CVE-2026-81455

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Summary