CVE-2020-29491: Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability.
Noroxi assessment
Priority: Monitor (action score 35/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 1.8% (FIRST EPSS); higher than 78.7% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- According to the record, no fixed version is available yet.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Update when a fix is released; follow the vendor's advisory.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
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.
- Published
- Jan 4, 2021
- Updated
- Jun 16, 2026
- EPSS
- 1.8% · 78th percentile
- CWE
- CWE-276
Report tools
Action score
35
Monitor
Low priority for now.
- CVSS
- 34 / 40 · 8.6 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 1.8%
CNA vs NVD score
- NVD
- 8.6
- CNA · dell
- 10.0
- 1.4 point gap
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- No fixed version yet
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| dell | wyse thinos | cpe:2.3:o:dell:wyse_thinos |
| dell | wyse 3040 | cpe:2.3:h:dell:wyse_3040 |
| dell | wyse 5010 | cpe:2.3:h:dell:wyse_5010 |
| dell | wyse 5040 | cpe:2.3:h:dell:wyse_5040 |
| dell | wyse 5060 | cpe:2.3:h:dell:wyse_5060 |
| dell | wyse 5070 | cpe:2.3:h:dell:wyse_5070 |
| dell | wyse 5470 | cpe:2.3:h:dell:wyse_5470 |
| dell | wyse 7010 | cpe:2.3:h:dell:wyse_7010 |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- dell wyse thinosup to 8.6 inclusive
Versions reported by the vendor
Affected version ranges reported by the assigning authority (dell). Independent of NVD's CPE analysis and usually ahead of it.
Dell Wyse Proprietary OS (ThinOS)
- unspecified and later · before 8.6affected
Same product
dell: all recordsOther highest-scoring records for the same primary product.
- CVE-2020-29492Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability.41Plan
- CVE-2024-42427Dell ThinOS versions 2402 and 2405, contains an Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerab30Monitor
- CVE-2021-21532Dell Wyse ThinOS 8.6 MR9 contains remediation for an improper management server validation vulnerability that could be potentially exploited25Monitor
Published before and after this one in the same product
- Later →CVE-2021-21597Aug 10, 2021 · Dell Wyse ThinOS, version 9.0, contains a Sensitive Information Disclosure Vulnerability.15Monitor
- Later →CVE-2021-21598Aug 10, 2021 · Dell Wyse ThinOS, versions 9.0, 9.1, and 9.1 MR1, contain a Sensitive Information Disclosure Vulnerability.15Monitor
- Later →CVE-2022-34402Oct 10, 2022 · Dell Wyse ThinOS 2205 contains a Regular Expression Denial of Service Vulnerability in UI.19Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
No history yet (it accumulates with the daily EPSS job).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-20-1046 · Dec 28, 2020(Dell Wyse Ürünleri Zafiyeti)
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
Impact can extend beyond the vulnerable component (scope changes).
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-276 · Incorrect Default PermissionsCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.