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1 vulnerability by Insta
CVE-2026-19061 (GCVE-0-2026-19061)
Vulnerability from cvelistv5 – Published: 2026-08-06 17:00 – Updated: 2026-10-13 12:58 Disputed
VLAI
EPSS
VEX
Title
Insta InstaKNXServiceApp Firmware Update CreateWebClientAndDownloadFileList data authenticity
Summary
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".
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-08 02:14 UTC
CWE
- CWE-345 - Insufficient Verification of Data Authenticity
Assigner
VulDB
CNA
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/386531 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/386531/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-19061 | third-party-advisory |
| https://vuldb.com/submit/864343 | third-party-advisory |
| https://gist.github.com/isZzzz/f9da7d76cf2f7b93ec… | broken-link |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Insta | InstaKNXServiceApp |
Affected:
1.2.3.1469
cpe:2.3:a:insta:instaknxserviceapp:*:*:*:*:*:*:*:* |
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