Insta InstaKNXServiceApp Firmware Update CreateWebClientAndDownloadFileList data authenticity
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".
CVE-2026-19061
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-19061
InstaKNXServiceApp
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"cpes": [
"cpe:2.3:a:insta:instaknxserviceapp:*:*:*:*:*:*:*:*"
],
"vendor": "Insta",
"modules": [
"Firmware Update Handler"
],
"product": "InstaKNXServiceApp",
"versions": [
{
"status": "affected",
"version": "1.2.3.1469"
}
]
}
]- Related CVEs
- CVE-2026-19061
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #17286 · Revision 1
- Added to Heist Feed
- Publisher date