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  4. CVE 2026 19061 insta instaknxserviceapp firmware update
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Back to active CVEs
Medium · CVSS 6.3CVE-2026-19061

Insta InstaKNXServiceApp Firmware Update CreateWebClientAndDownloadFileList data authenticityCVE-2026-19061

Answer in brief

CVE-2026-19061 records a Medium severity (CVSS 6.3) vulnerability in Insta InstaKNXServiceApp Firmware Update CreateWebClientAndDownloadFileList data authenticity. The current sources do not mark it as known exploited. The current feed maps Insta/InstaKNXServiceApp (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 6, 2026Updated Oct 13, 2026Source checked Nov 5, 2026First seen by HOL Aug 6, 2026Material review Oct 13, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.3. The current sources do not mark it as known exploited. 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.

Affected scope and exposure questions

The current feed maps Insta/InstaKNXServiceApp (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Insta/InstaKNXServiceAppgeneric1.2.3.1469Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Insta/InstaKNXServiceApp.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Aug 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 6, 2026

Sources and claim methodology

  • GitHub security advisorygist.github.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
Upstream source 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".

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-345
Source
CVE List V5
Source checked
Nov 5, 2026
References
5 linked sources
Open source record