CVE-2026-101974
Awaiting Analysis Awaiting Analysis - Queue

Improper Input Validation in Juniper Junos OS rpd

Publication date: 2026-10-14

Last updated on: 2026-10-29

Assigner: Juniper Networks, Inc.

Description
An Improper Validation of Specified Quantity in Input vulnerability in rpd of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent OSPF peer to disclose rpd memory or cause a rpd crash via a malformed OSPF packets.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-14
Last Modified
2026-10-29
Generated
2026-11-08
AI Q&A
2026-10-15
EPSS Evaluated
2026-11-07
NVD
CVE-2026-101974
EUVD
EUVD-2026-101446

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-1284 The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is an Improper Validation of Specified Quantity in Input issue in Juniper Networks Junos OS and Junos OS Evolved. It allows an adjacent OSPF peer to either disclose memory from the rpd process or cause it to crash by sending malformed OSPF packets.

Detection Guidance

This vulnerability can be detected by monitoring for malformed OSPF packets or rpd crashes. Check Juniper device logs for OSPF packet processing errors or unexpected rpd restarts. Use commands like 'show ospf neighbor' to verify OSPF adjacencies and 'show system processes extensive | match rpd' to monitor rpd status.

Impact Analysis

An attacker within the same network segment could exploit this to crash the routing process (rpd) on affected devices, leading to network disruption or potential information disclosure from memory.

Compliance Impact

The vulnerability allows an adjacent OSPF peer to disclose rpd memory or cause a rpd crash via malformed OSPF packets. This could lead to unauthorized access to sensitive data or service disruption, potentially violating data protection requirements in GDPR and HIPAA.

Mitigation Strategies

Apply the latest Junos OS or Junos OS Evolved patches from Juniper Networks to address the OSPF packet validation issue. Monitor rpd process logs for crashes or memory disclosures. Isolate affected systems from untrusted OSPF peers until patched.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-101974. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart

Security Radar

News mentioning this vulnerability
Loading related security news...