Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-19061
Insta InstaKNXServiceApp Firmware Update CreateWebClientAndDownloadFileList data authenticity
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
N H N N N N L N 6.3 .0022 11.4 —
AFFECTED
Product Versions Fixed
InstaKNXServiceApp 1.2.3.1469 – —
TIMELINE
Aug 6 Reserved by VulDB
Aug 6 Published (CNA: VulDB)
Oct 13 DISPUTED — CVE-2026-19061 (InstaKNXServiceApp). Record marked disputed.
Description
A flaw has been found in Insta InstaKNXServiceApp 1.2.3.1469. Affected by this issue is the function CreateWebClientAndDownloadFileList of the component Firmware Update Handler. Executing a manipulation can lead to insufficient verification of data authenticity. It is possible to launch the attack remotely. Attacks of this nature are highly complex. The exploitation is known to be difficult. There are still doubts about whether this vulnerability truly exists. The vendor explains: "[T]he entry suggests that the device does not verify the authenticity of the update. This is incorrect. The device performs an authenticity check after the complete update has been transferred. If this check fails, the update is not installed and the previously installed firmware continues to run".
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| August 6, 2026 | Reserved | Reserved by VulDB |
| August 6, 2026 | Published | Published (CNA: VulDB) |
| October 13, 2026 | DISPUTED | DISPUTED — CVE-2026-19061 (InstaKNXServiceApp). Record marked disputed. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Insta | InstaKNXServiceApp | — | 1.2.3.1469 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-19061 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 Monday, October 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.