CVE-2026-101981

8.7 HIGH 0.2% exploit odds No fix listed Memory safety Network gear

What it is

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.

At a glance

Exploitability: Can be exploited from the same network segment without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 0.2% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2026-09-28 16:31 UTC ReservedThe CVE id was reserved by its CNA
2026-10-14 18:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-16 15:16 UTC Last updatedMost recent change to the record

Details

Published: 2026-10-14 18:17 UTC
Last modified: 2026-10-16 15:16 UTC
Exploit probability: 0.2% · EPSS, next 30 days
Weakness: CWE-121
Record status: Awaiting Analysis

Attack profile CVSS 4.0 · 8.7

Attack vector: Adjacent network
Complexity: Low
Attack requirements: None
Privileges needed: None
User interaction: None
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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References

https://supportportal.juniper.net/JSA112187

NVD record · CVE.org record