---
title: "CVE-2026-110491: E3 - Denial of Service"
description: "E3 contains a denial of service caused by malformed or incomplete requests to ONVIF service operations, letting unauthenticated attackers with network access render the service unresponsive temporarily, exploit requires network access."
url: https://panop.io/threat-heartbeat/CVE-2026-110491/
---

# CVE-2026-110491 E3 - Denial of Service

E3 contains a denial of service caused by malformed or incomplete requests to ONVIF service operations, letting unauthenticated attackers with network access render the service unresponsive temporarily, exploit requires network access.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-110491)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

22 October 2026

Updated

23 October 2026

Weakness

[CWE-476](https://cwe.mitre.org/data/definitions/476.html)

## Vendor fix

Update to the latest version or patch provided by the vendor.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-110491](https://nvd.nist.gov/vuln/detail/CVE-2026-110491)
- [https://github.com/cisagov/CSAF/blob/develop/csaf\_files/OT/white/2026/icsa-26-295-01.json](https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-295-01.json)
- [https://www.cisa.gov/news-events/ics-advisories/icsa-26-295-01](https://www.cisa.gov/news-events/ics-advisories/icsa-26-295-01)
- [https://www.kiloview.com/en/download/e3-firmware-downloadlatest-12/](https://www.kiloview.com/en/download/e3-firmware-downloadlatest-12/)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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