QID 44186

QID 44186: Juniper Network Operating System (Junos OS) MX Series Denial of Service (DoS) Vulnerability (JSA79092)

Juniper Junos is the network operating system used in Juniper Networks hardware systems.

A Stack-based Buffer Overflow vulnerability in Flow Processing Daemon (flowd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).

Affected releases are Junos OS:
All versions before 21.2R3-S6
from 21.3 before 21.3R3-S5
from 21.4 before 21.4R3-S5
from 22.1 before 22.1R3-S3
from 22.2 before 22.2R3-S1
from 22.3 before 22.3R2-S2, 22.3R3
from 22.4 before 22.4R2-S1, 22.4R3

QID detection logic: (Authenticated)
This QID checks for vulnerable Junos OS version.

QID detection logic: (Unauthenticated)
This QID checks SNMP banner for vulnerable version of JunOS.

Note: As the URL filtering status and template configuration cannot be checked for now hence the QID is practice

Successful exploitation of this vulnerability may allow an unauthenticated networked attacker to cause Denial of Service (DoS).

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
  • Solution
    The Vendor has released patch addressing the vulnerabilities, for more information please refer JSA79092
    Vendor References

    CVEs related to QID 44186

    Software Advisories
    Advisory ID Software Component Link
    JSA79092 URL Logo supportportal.juniper.net/JSA79092

    © CVE.report 2026

    Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

    CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

    Free CVE JSON API cve.report/api

    CVE.report and Source URL Uptime Status status.cve.report