CVE-2026-102176 Memory corruption in Junos OS
Unauthenticated attackers can cause denial of service or compromise the Routing Engine via buffer overflow in the SDK service when JDAF is enabled.
- 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-2026-102176?
CVE-2026-102176 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 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the SDK service process of Juniper Networks Junos OS allows an unauthenticated network attacker to cause a denial of service or compromise the Routing Engine by sending specific packets when the SDK service and a JDAF routing instance are enabled.
Weakness: CWE-120
Which versions are affected by CVE-2026-102176?
How do I fix CVE-2026-102176?
No fix has been published for CVE-2026-102176 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-2026-102176 being exploited?
There is no known exploitation of CVE-2026-102176 in the wild and no public exploit code.
Sources
Also known as GHSA-4wm2-584w-p5fp.