CVE-2026-102182
Junos OS: MX Series: Certificate-based IKE packets cause root-level code execution
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;
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Junos OS: MX Series: Certificate-based IKE packets cause root-level code execution
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;
- Record
CVE-2026-102182- CVSS 4.0
- 9.3 Critical
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/AU:Y/R:A/V:C/RE:M - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-121
- Updated
- 2026-11-02
EUVDEUVD-2026-101397
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;
- Record
EUVD-2026-101397- CVSS 4.0
- 9.3 Critical
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/AU:Y/R:A/V:C/RE:M - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-pvg7-92rm-23q6
A Stack-based Buffer Overflow vulnerability in the kmd component of Juniper Networks Junos OS on...
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 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;
- Record
GHSA-pvg7-92rm-23q6- CVSS 4.0
- 9.3 Critical
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:X - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-121
- Updated
- 2026-11-02
NVD
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;
- Record
CVE-2026-102182- CVSS 4.0
- 9.3 Critical
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:X - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-121
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-102182 is a critical vulnerability (CVSS 9.3) in Juniper Networks Junos Os, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. No source names a fixed version.