How severe is CVE-2020-29491?

CVE-2020-29491 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-29491 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-29491?

CVE-2020-29491 affects Dell Wyse Thinos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-29491?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-29491 published?

CVE-2020-29491 was published on 2021-01-04 and last updated on 2026-06-17.

CVE-2020-29491

CVE-2020-29491 is a critical-severity vulnerability in Dell Wyse Thinos with a CVSS 3.x base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-276.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v2: 5.0
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Dell Wyse Thinos
Published: 2021-01-04
Last modified: 2026-06-17

Description

Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability to gain access to the sensitive information on the local network, leading to the potential compromise of impacted thin clients.

Frequently asked questions

What is CVE-2020-29491?: Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability to gain access to the sensitive information on the local network, leading to the potential compromise of impacted thin clients.
How severe is CVE-2020-29491?: CVE-2020-29491 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-29491 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-29491?: CVE-2020-29491 affects Dell Wyse Thinos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-29491?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-29491 published?: CVE-2020-29491 was published on 2021-01-04 and last updated on 2026-06-17.

References

https://www.dell.com/support/kbdoc/en-us/000180768/dsa-2020-281

Affected products (1)

cpe:2.3:o:dell:wyse_thinos:*:*:*:*:*:*:*:*

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