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CVE-2026-102050

8.8, high

Juniper Networks Junos OS Stack-based Buffer Overflow Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
8.8, high high CVSS v3.1
EPSS, next 30 days
0.3% higher than 20.9% of scored CVEs
Exploitation
No public evidence
Published
14 Oct 20263 days ago

Description

A Stack-based Buffer Overflow vulnerability in the l2cpd daemon of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial of service in Layer 2 control-plane processing via LLDP packets received on an interface configured for LLDP. Repeated triggering may disrupt LLDP and other Layer 2 control protocols across the device.

Details

Vendor
Juniper Networks
Product
Junos OS
Weakness
CWE-121 (opens in a new tab)
Status
Awaiting analysis
Updated
15 Oct 2026
Assigner
sirt@juniper.net

CVSS:3.1/AV:A/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-2026-101950 Juniper Networks Junos OS Heap-based Buffer Overflow Vulnerability EPSS 0.5% 9.8, critical
  • 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

Beyond this page

Is CVE-2026-102050 in your network?

This page tells you how dangerous CVE-2026-102050 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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    Detect it if it's exploited

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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 16 Oct 2026, not the live upstream state.