CVE-2026-101972: CWE-190 Integer Overflow or Wraparound in Juniper Networks Junos OS
Description
An Integer Overflow or Wraparound vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial of service via specific OSPFv2 packets sent on an OSPF-enabled interface.
CVSS v3.1
Score 6.5medium
Affected software
Juniper Networks
Junos OS
Juniper Networks
Junos OS Evolved
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an integer overflow or wraparound in the routing protocol daemon (rpd) component of Juniper Networks Junos OS and Junos OS Evolved. Exploitation requires an unauthenticated attacker to be adjacent on the network and send specially crafted OSPFv2 packets to an OSPF-enabled interface. Successful exploitation results in a denial of service condition by disrupting the routing daemon. The issue is tracked as CVE-2026-101972 with a CVSS 3.1 score of 6.5 (AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Potential Impact
The vulnerability allows an unauthenticated adjacent attacker to cause a denial of service by crashing or disrupting the routing protocol daemon (rpd) through crafted OSPFv2 packets. This impacts the availability of the affected Junos OS devices but does not affect confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, limit exposure by controlling adjacency on OSPF-enabled interfaces and monitoring for unusual OSPFv2 traffic patterns.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- juniper
- Date Reserved
- 2026-09-28T16:31:35.503Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6acfbd882cdf04f6569a6b74
Added to database: 10/14/2026, 17:36:08 UTC
Last enriched: 10/14/2026, 17:49:22 UTC
Last updated: 10/14/2026, 20:49:11 UTC
Views: 8
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.