Answer in brief
CVE-2020-2506 records a High severity vulnerability in improper access control vulnerability in Helpdesk. The current sources mark it as known exploited. The current feed maps QNAP Systems Inc./Helpdesk (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps QNAP Systems Inc./Helpdesk (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| QNAP Systems Inc./Helpdeskgeneric | >=unspecified <3.0.3 | 3.0.3 |
Published upstream
Feb 3, 2021
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Mar 25, 2022
Evidence: source:kev:kev:kev:recordThe vulnerability have been reported to affect earlier versions of QTS. If exploited, this improper access control vulnerability could allow attackers to compromise the security of the software by gaining privileges, or reading sensitive information. This issue affects: QNAP Systems Inc. Helpdesk versions prior to 3.0.3.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2020-2506 records a High severity vulnerability in improper access control vulnerability in Helpdesk. The current sources mark it as known exploited. The current feed maps QNAP Systems Inc./Helpdesk (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps QNAP Systems Inc./Helpdesk (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| QNAP Systems Inc./Helpdeskgeneric | >=unspecified <3.0.3 | 3.0.3 |
Published upstream
Feb 3, 2021
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Mar 25, 2022
Evidence: source:kev:kev:kev:recordThe vulnerability have been reported to affect earlier versions of QTS. If exploited, this improper access control vulnerability could allow attackers to compromise the security of the software by gaining privileges, or reading sensitive information. This issue affects: QNAP Systems Inc. Helpdesk versions prior to 3.0.3.
Quoted source text, attributed separately from HOL analysis.