---
title: "CVE-2026-102081: Juniper Networks Junos OS - Denial of Service"
description: "Juniper Networks Junos OS on SRX and MX Series 23.4R2-S3 < versions < 23.4R2-S7, 24.2R2 < versions < 24.2R2-S3, 24.4 < versions < 24.4R2-S3, and 25.2 < versions < 25.2R2 contain a denial of service caused by memory leak in the packet forwarding engine when specific application services are configured, letting unauthenticated network attackers exhaust memory and disrupt traffic processing, exploit requires high connection churn."
url: https://panop.io/threat-heartbeat/CVE-2026-102081/
---

# CVE-2026-102081 Juniper Networks Junos OS - Denial of Service

Juniper Networks Junos OS on SRX and MX Series 23.4R2-S3 < versions < 23.4R2-S7, 24.2R2 < versions < 24.2R2-S3, 24.4 < versions < 24.4R2-S3, and 25.2 < versions < 25.2R2 contain a denial of service caused by memory leak in the packet forwarding engine when specific application services are configured, letting unauthenticated network attackers exhaust memory and disrupt traffic processing, exploit requires high connection churn.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-102081)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

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

Published

14 October 2026

Updated

15 October 2026

Weakness

[CWE-401](https://cwe.mitre.org/data/definitions/401.html)

## Vendor fix

Upgrade to versions 23.4R2-S7, 24.2R2-S3, 24.4R2-S3, 25.2R1-S2, 25.2R2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-102081](https://nvd.nist.gov/vuln/detail/CVE-2026-102081)
- [https://supportportal.juniper.net/JSA112177](https://supportportal.juniper.net/JSA112177)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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