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CVE-2026-101950

9.8, critical

Juniper Networks Junos OS Heap-based Buffer Overflow Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
9.8, critical critical CVSS v3.1
EPSS, next 30 days
0.5% higher than 39% of scored CVEs
Exploitation
No public evidence
Published
14 Oct 20263 days ago

Description

A Heap-based Buffer Overflow vulnerability in the SVR component of Juniper Networks Junos OS on SRX Series allows an unauthenticated network attacker to cause a denial of service and potentially compromise confidentiality and integrity via malformed IPv4 packets reaching an interface configured for Secure Vector Routing.

Details

Vendor
Juniper Networks
Product
Junos OS
Weakness
CWE-122 (opens in a new tab)
Status
Awaiting analysis
Updated
15 Oct 2026
Assigner
sirt@juniper.net

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Juniper Networks CVEs

Every Juniper Networks CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-101990 Juniper Networks Junos OS Stack-based Buffer Overflow Vulnerability EPSS 0.6% 9.8, critical
  • CVE-2026-102031 Juniper Networks Junos OS Evolved OS Command Injection Vulnerability EPSS 2% 9.8, critical
  • CVE-2026-102175 Juniper Networks Junos OS Heap-based Buffer Overflow Vulnerability EPSS 0.7% 9.8, critical
  • CVE-2026-102178 Juniper Networks Junos OS Stack-based Buffer Overflow Vulnerability EPSS 0.5% 9.8, critical
  • CVE-2026-101954 Juniper Networks Junos OS Improper Authentication Vulnerability EPSS 0.5% 9.8, critical
  • CVE-2026-101982 Juniper Networks Junos OS Stack-based Buffer Overflow Vulnerability EPSS 0.6% 9.8, critical
  • CVE-2026-101927 Juniper Networks Junos OS Heap-based Buffer Overflow Vulnerability EPSS 0.2% 7.8, high
  • CVE-2026-101939 Juniper Networks Junos OS NULL Pointer Dereference Vulnerability EPSS 0.5% 7.5, high

Beyond this page

Is CVE-2026-101950 in your network?

This page tells you how dangerous CVE-2026-101950 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.