CVE-2023-44184Network attack vector

Control-plane denial of service via NETCONF command

Published Oct 12, 2023 · Updated Sep 17, 2024

Memory-boundary error in mgd in Junos OS and Junos OS Evolved allows remote authenticated users to interrupt the device control plane via NETCONF. Juniper has not disclosed the specific command or memory operation; processing it drives mgd CPU utilization high and leaves the NETCONF session logged in. Low-privileged access to the enabled NETCONF service is required, and the resulting CPU exhaustion disrupts control-plane service without reported data disclosure or modification.

CVSS severity6.5
Medium
EPSS probability0.50%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory-boundary error in mgd in Junos OS and Junos OS Evolved allows remote authenticated users to interrupt the device control plane via NETCONF. Juniper has not disclosed the specific command or memory operation; processing it drives mgd CPU utilization high and leaves the NETCONF session logged in. Low-privileged access to the enabled NETCONF service is required, and the resulting CPU exhaustion disrupts control-plane service without reported data disclosure or modification.

The record

CVE
CVE-2023-44184
Published
Oct 12, 2023
Updated
Sep 17, 2024
Vendor
Juniper Networks
Product
Junos OS Evolved
Classifications
CWE-119, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <21.4R3-S4-EVO
  2. Affected versionversion=22.1 <22.1R3-S2-EVO
  3. Affected versionversion=22.2 <22.2R3-EVO
  4. Affected versionversion=22.3 <22.3R3-EVO
  5. Affected versionversion=22.4 <22.4R2-EVO

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Juniper Networks · Junos OS Evolvedversion=0 <21.4R3-S4-EVO; version=22.1 <22.1R3-S2-EVO; version=22.2 <22.2R3-EVO; version=22.3 <22.3R3-EVO; version=22.4 <22.4R2-EVO
Juniper Networks · Junos OSversion=0 <20.4R3-S7; version=21.1 <21.1R1; version=21.2 <21.2R3-S5; version=21.3 <21.3R3-S5; version=21.4 <21.4R3-S4; version=22.1 <22.1R3-S2; version=22.2 <22.2R3; version=22.3 <22.3R2-S1, 22.3R3; version=22.4 <22.4R1-S2, 22.4R2

Published CVSS scores

6.5Juniper NetworksCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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