Log in Start free

Vulnerability · Published Oct 14, 2026 · Assigned by juniper

CVE-2026-102182Junos OS: MX Series: Certificate-based IKE packets cause root-level code execution

Critical 9.8

In plain English

A critical-severity stack buffer overflow in Junos OS from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 64.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A Stack-based Buffer Overflow vulnerability in the kmd component of Juniper Networks Junos OS on MX Series allows an unauthenticated network attacker to execute code as root via specific IKE certificate-based packets. This issue requires IKE to be enabled with an RSA-signature IKE policy to be vulnerable. This issue affects Junos OS on MX Series: * All versions before 21.2R3-S11; * from 21.4 before 21.4R3-S12; * from 22.2 before 22.2R3-S8; * from 22.3 before 22.3R3-S5; * from 22.4 before 22.4R3-S9;

Affected products (as reported)

VendorProductVersions
Juniper Networks Junos OS 0 – before 23.2R2-S7.723.4 – before 23.4R2-S8.1324.2 – before 24.2R2-S5.524.4 – before 24.4R2-S525.2 – before 25.2R2-S225.4 – before 25.4R1-S326.2 – before 26.2R1-S2

Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References