What is CVE-2026-101970?

CVE-2026-101970 is a medium-severity vulnerability in Juniper Networks Junos OS, classified under Use After Free. CVSS score: 6.5/10. Published 2026-10-14.

How severe is CVE-2026-101970?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Use After Free in Juniper Networks Junos OS

CVE-2026-101970

A Use After Free vulnerability in the rpd PIM Join/Prune processing of Juniper Networks Junos OS and Junos OS Evolved platforms allows an unauthenticated adjacent attacker to crash the routing daemon via specific PIM messages when sparse mode PIM is configured.

Vulnerability class: Use-After-Free

Published 2026-10-14 · last modified 2026-10-14.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Juniper Networks Junos OS
Juniper Networks Junos OS Evolved — versions 23.4X100

Weakness classification (CWE)

CWE-416 — Use After Free

References

supportportal.juniper.net/JSA112187 (vendor-advisory)

Frequently asked questions

What is CVE-2026-101970?: CVE-2026-101970 is a medium-severity vulnerability in Juniper Networks Junos OS, classified under Use After Free. CVSS score: 6.5/10. Published 2026-10-14.
How severe is CVE-2026-101970?: Medium severity. CVSS v3 base score is 6.5 out of 10.