An Integer Underflow vulnerability in the kernel of Juniper Networks Junos OS with Extended Echo configured allows an unauthenticated, network-based attacker to cause a denial of service by a kernel crash.
History

Fri, 16 Oct 2026 23:45:00 +0000

Type Values Removed Values Added
First Time appeared Juniper Networks
Juniper Networks junos Os
Vendors & Products Juniper Networks
Juniper Networks junos Os

Thu, 15 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 14 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Description An Integer Underflow vulnerability in the kernel of Juniper Networks Junos OS with Extended Echo configured allows an unauthenticated, network-based attacker to cause a denial of service by a kernel crash.
Title Junos OS: Malformed Extended Echo requests cause a Routing Engine reboot when Extended Echo is enabled
Weaknesses CWE-191
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: juniper

Published: 2026-10-14T16:17:50.040Z

Updated: 2026-10-14T20:46:21.554Z

Reserved: 2026-09-28T16:31:35.503Z

Link: CVE-2026-101980

cve-icon Vulnrichment

Updated: 2026-10-14T20:39:44.315Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-14T17:17:50.503

Modified: 2026-10-15T16:23:06.250

Link: CVE-2026-101980

cve-icon Redhat

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