CVE-2026-82157: Dell ThinOS 10 improper certificate validation

CVE-2026-82157 · Severity: high · CVSS 8.3 · Published 2026-09-24

Dell ThinOS 10, the operating system running on Dell Latitude and OptiPlex machines, contains a flaw in how it validates security certificates. An attacker on the same network can bypass security protections and gain unauthorized access to the system without providing credentials, potentially leading to data theft or system compromise.

Technologies: Dell ThinOS 10. Vendors: Dell.

Quick answers

Is CVE-2026-82157 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-82157 being exploited in the wild.
How severe is CVE-2026-82157?
High severity, with a CVSS score of 8.3, published 24 September 2026.
Which products and versions are affected?
Dell ThinOS 10 prior to SecurityAddon_2605.10.2766_T10.
Is there a fix for CVE-2026-82157?
A patch was published on 2026-09-10: SecurityAddon_2605.10.2766_T10 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-82157 attacked?
It is attacked from the adjacent network, in an operating system.
Am I affected by CVE-2026-82157?
Check whether you run Dell ThinOS 10 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an improper certificate validation issue in ThinOS 10 prior to SecurityAddon_2605.10.2766_T10. An unauthenticated attacker with adjacent network access can exploit this to bypass protection mechanisms and achieve unauthorized access. The flaw allows an attacker to forge or intercept certificate-based authentication on the local network segment.

Affected products

  • Dell ThinOS 10 prior to SecurityAddon_2605.10.2766_T10

Timeline

  • 2026-09-24: disclosed
  • 2026-09-10: patched: SecurityAddon_2605.10.2766_T10 released

References

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