Buffer overflow in Juniper Networks Junos OS

CVE-2026-101981

A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent LDP peer to cause an rpd crash or execute arbitrary code via a malformed LDP Label Mapping message.

Vulnerability class: Buffer Overflow

Published .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-101981?
CVE-2026-101981 is a high-severity vulnerability in Juniper Networks Junos OS, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-10-14.
How severe is CVE-2026-101981?
High severity. CVSS v3 base score is 8.8 out of 10.