--- title: "CVE-2026-101966: Juniper Networks Junos OS Evolved - Denial of Service" description: "Juniper Networks Junos OS Evolved contains a use of externally-controlled format string vulnerability caused by crafted analytics sensor resource in jti-dialoutd gNMI listener, letting authenticated network attackers cause persistent telemetry dial-out denial of service." url: https://panop.io/threat-heartbeat/CVE-2026-101966/ --- # CVE-2026-101966 Juniper Networks Junos OS Evolved - Denial of Service Juniper Networks Junos OS Evolved contains a use of externally-controlled format string vulnerability caused by crafted analytics sensor resource in jti-dialoutd gNMI listener, letting authenticated network attackers cause persistent telemetry dial-out denial of service. CVSS base score 8.2 /10 High CISA KEV Not listed Public exploit None known Authentication Not required [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-101966) ## 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:L/I:N/A:H Published 14 October 2026 Updated 15 October 2026 Weakness [CWE-134](https://cwe.mitre.org/data/definitions/134.html) ## Vendor fix Update to the latest Junos OS Evolved version with the fix. 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-2026-101966](https://nvd.nist.gov/vuln/detail/CVE-2026-101966) - [https://supportportal.juniper.net/JSA112250](https://supportportal.juniper.net/JSA112250) [← All CVEs](https://panop.io/threat-heartbeat/) ## 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. [Book a demo](https://panop.io/demo)