Answer in brief
CVE-2018-19943 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps QNAP Systems Inc./QTS (generic), QNAP Systems Inc./QTS (generic), QNAP Systems Inc./QTS (generic), QNAP Systems Inc./QTS (generic) and additional mapped packages. 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./QTS (generic), QNAP Systems Inc./QTS (generic), QNAP Systems Inc./QTS (generic), QNAP Systems Inc./QTS (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| QNAP Systems Inc./QTSgeneric | >=unspecified <4.4.2.1270 | 4.4.2.1270 |
| QNAP Systems Inc./QTSgeneric | >=unspecified <4.4.1.1261 || >=unspecified <4.3.6.1263 | 4.4.1.1261, 4.3.6.1263 |
| QNAP Systems Inc./QTSgeneric | >=unspecified <4.3.4.1282 | 4.3.4.1282 |
| QNAP Systems Inc./QTSgeneric | >=unspecified <4.3.3.1252 | 4.3.3.1252 |
| QNAP Systems Inc./QTSgeneric | >=unspecified <4.2.6 | 4.2.6 |
Published upstream
Oct 28, 2020
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
May 24, 2022
Evidence: source:kev:kev:kev:recordIf exploited, this cross-site scripting vulnerability could allow remote attackers to inject malicious code. QNAP has already fixed these issues in the following QTS versions. QTS 4.4.2.1270 build 20200410 and later QTS 4.4.1.1261 build 20200330 and later QTS 4.3.6.1263 build 20200330 and later QTS 4.3.4.1282 build 20200408 and later QTS 4.3.3.1252 build 20200409 and later QTS 4.2.6 build 20200421 and later
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2018-19943 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps QNAP Systems Inc./QTS (generic), QNAP Systems Inc./QTS (generic), QNAP Systems Inc./QTS (generic), QNAP Systems Inc./QTS (generic) and additional mapped packages. 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./QTS (generic), QNAP Systems Inc./QTS (generic), QNAP Systems Inc./QTS (generic), QNAP Systems Inc./QTS (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| QNAP Systems Inc./QTSgeneric | >=unspecified <4.4.2.1270 | 4.4.2.1270 |
| QNAP Systems Inc./QTSgeneric | >=unspecified <4.4.1.1261 || >=unspecified <4.3.6.1263 | 4.4.1.1261, 4.3.6.1263 |
| QNAP Systems Inc./QTSgeneric | >=unspecified <4.3.4.1282 | 4.3.4.1282 |
| QNAP Systems Inc./QTSgeneric | >=unspecified <4.3.3.1252 | 4.3.3.1252 |
| QNAP Systems Inc./QTSgeneric | >=unspecified <4.2.6 | 4.2.6 |
Published upstream
Oct 28, 2020
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
May 24, 2022
Evidence: source:kev:kev:kev:recordIf exploited, this cross-site scripting vulnerability could allow remote attackers to inject malicious code. QNAP has already fixed these issues in the following QTS versions. QTS 4.4.2.1270 build 20200410 and later QTS 4.4.1.1261 build 20200330 and later QTS 4.3.6.1263 build 20200330 and later QTS 4.3.4.1282 build 20200408 and later QTS 4.3.3.1252 build 20200409 and later QTS 4.2.6 build 20200421 and later
Quoted source text, attributed separately from HOL analysis.