Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N R C L L N 6.1 .2389 97.6 YES
AFFECTED Product Versions Fixed QTS unspecified – — QTS unspecified – — QTS unspecified – — QTS unspecified – — QTS unspecified – —
TIMELINE Dec 7 Reserved by qnap May 24 Added to CISA KEV, remediation due 2022-06-14 May 24 Published (CNA: qnap)
If exploited, this cross-site scripting vulnerability could allow remote attackers to inject malicious code. QNAP has already fixed the issue in the following QTS versions. QTS 4.4.2.1231 on build 20200302; QTS 4.4.1.1201 on build 20200130; QTS 4.3.6.1218 on build 20200214; QTS 4.3.4.1190 on build 20200107; QTS 4.3.3.1161 on build 20200109; QTS 4.2.6 on build 20200109.
| Date | Event | Detail |
|---|---|---|
| December 7, 2018 | Reserved | Reserved by qnap |
| May 24, 2022 | KEV ADDED | Added to CISA KEV, remediation due 2022-06-14 |
| May 24, 2022 | Published | Published (CNA: qnap) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| QNAP Systems Inc. | QTS | — | unspecified | — |
| QNAP Systems Inc. | QTS | — | unspecified | — |
| QNAP Systems Inc. | QTS | — | unspecified | — |
| QNAP Systems Inc. | QTS | — | unspecified | — |
| QNAP Systems Inc. | QTS | — | unspecified | — |
Authoritative record: CVE-2018-19953 at cve.org
Vendors: qnap systems
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2018-19953 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.