What is CVE-2026-101971?

CVE-2026-101971 is a medium-severity vulnerability in Juniper Networks Junos OS, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-10-14.

How severe is CVE-2026-101971?

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

Resource exhaustion in Juniper Networks Junos OS

CVE-2026-101971

An Allocation of Resources Without Limits or Throttling vulnerability in rpd, the routing protocol daemon, of Juniper Networks Junos OS and Junos OS Evolved platforms allows an unauthenticated adjacent attacker to cause a denial of service and heap memory corruption via OSPFv3 messages on an enabled broadcast interface.

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-770 — Allocation of Resources Without Limits or Throttling

References

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

Frequently asked questions

What is CVE-2026-101971?: CVE-2026-101971 is a medium-severity vulnerability in Juniper Networks Junos OS, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-10-14.
How severe is CVE-2026-101971?: Medium severity. CVSS v3 base score is 6.5 out of 10.