CVE-2026-101980

CRITICAL

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.

CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Published: 10/14/2026Modified: 10/14/2026

Related Intelligence (1)

CRITICALVulnerability

NVD CRITICAL: CVE-2026-101980 — An Integer Underflow vulnerability in the kernel of Juniper Networks Junos OS wi...

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.

CVE-2026-101980
NIST NVD

References (1)

https://supportportal.juniper.net/JSA112188