CVE-2026-101927 Junos OS and Junos OS Evolved: An unprivileged local attacker causes denial of service or privilege escalation
An unprivileged local attacker can cause denial of service or escalate privileges to root via crafted IPC messages in eventd.
- 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-2026-101927?
CVE-2026-101927 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 eventd of Juniper Networks Junos OS and Junos OS Evolved on all platforms allows an unprivileged local attacker to cause a denial of service (DoS) or achieve privilege escalation to root via crafted IPC event messages.
Weakness: CWE-122
Which versions are affected by CVE-2026-101927?
How do I fix CVE-2026-101927?
No fix has been published for CVE-2026-101927 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-2026-101927 being exploited?
There is no known exploitation of CVE-2026-101927 in the wild and no public exploit code.
Sources
Also known as GHSA-hgrj-qh2v-6rv5.