CVE-2026-102015 Junos OS and Junos OS Evolved: An attacker causes root code execution when 802.1X authentication is used
An attacker can execute root code or cause denial of service via a heap buffer overflow in the 802.1X authentication process on Juniper devices.
- 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-2026-102015?
CVE-2026-102015 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 Heap-based Buffer Overflow vulnerability in the secure-dot1xd process of Juniper Networks on Junos OS and Junos OS Evolved allows an unauthenticated adjacent network attacker to execute code as root or cause a denial of service via an EAPOL frame sent to an 802.1X-authenticated interface.
Weakness: CWE-122
Which versions are affected by CVE-2026-102015?
How do I fix CVE-2026-102015?
No fix has been published for CVE-2026-102015 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-2026-102015 being exploited?
There is no known exploitation of CVE-2026-102015 in the wild and no public exploit code.
Sources
Also known as GHSA-rqmv-fxq9-vw62.