Critical [CVE-2026-102182] 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 critical-severity Juniper Networks advisory covers CVE-2026-102182 affecting Junos OS.
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Summary
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 22.3 before 22.3R3-S5;
- * All versions before 21
Official advisory · high-confidence parse· fetched 7 days ago·verify at source
- 21.2R3-S11
- 21.4R3-S12
- 22.2R3-S8
- 22.3R3-S5
- 22.4R3-S9
Official advisory · high-confidence parse· fetched 7 days ago·verify at source
Mitigation
Upgrade to a fixed release: 21.2R3-S11, 21.4R3-S12, 22.2R3-S8, 22.3R3-S5, 22.4R3-S9. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 7 days ago·verify at source
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