CVE-2026-102061 Junos OS and Junos OS Evolved: An attacker causes root code execution when SZTP DHCP provisioning is used
An adjacent attacker can execute arbitrary code as root via crafted DHCP messages on devices using Secure-ZTP provisioning.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-102061?
CVE-2026-102061 is a high-severity memory corruption vulnerability in Juniper Networks Junos OS, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A Stack-based Buffer Overflow vulnerability in the phone-home daemon (phcd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to execute arbitrary code as root via a crafted DHCP SZTP bootstrap message.
This issue only affects platforms that support Secure-ZTP.
Weakness: CWE-121
Which versions are affected by CVE-2026-102061?
How do I fix CVE-2026-102061?
No fix has been published for CVE-2026-102061 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-102061 being exploited?
There is no known exploitation of CVE-2026-102061 in the wild and no public exploit code.
Sources
Also known as GHSA-hfpq-xp89-5vw4.