Vulnerability Details CVE-2023-44191
An Allocation of Resources Without Limits or Throttling vulnerability in Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).
On all Junos OS QFX5000 Series and EX4000 Series platforms, when a high number of VLANs are configured, a specific DHCP packet will cause PFE hogging which will lead to dropping of socket connections.
This issue affects:
Juniper Networks Junos OS on QFX5000 Series and EX4000 Series
* 21.1 versions prior to 21.1R3-S5;
* 21.2 versions prior to 21.2R3-S5;
* 21.3 versions prior to 21.3R3-S5;
* 21.4 versions prior to 21.4R3-S4;
* 22.1 versions prior to 22.1R3-S3;
* 22.2 versions prior to 22.2R3-S1;
* 22.3 versions prior to 22.3R2-S2, 22.3R3;
* 22.4 versions prior to 22.4R2.
This issue does not affect Juniper Networks Junos OS versions prior to 21.1R1
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 33.4%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2023-44191
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cpe:2.3:h:juniper:ex2300-c:-
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cpe:2.3:h:juniper:ex2300:-
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cpe:2.3:h:juniper:ex2300_multigigabit:-
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cpe:2.3:h:juniper:ex3400:-
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cpe:2.3:h:juniper:ex4100-f:-
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cpe:2.3:h:juniper:ex4100:-
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cpe:2.3:h:juniper:ex4100_multigigabit:-
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cpe:2.3:h:juniper:ex4300:-
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cpe:2.3:h:juniper:ex4300_multigigabit:-
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cpe:2.3:h:juniper:ex4400-24x:-
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cpe:2.3:h:juniper:ex4400:-
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cpe:2.3:h:juniper:ex4400_multigigabit:-
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cpe:2.3:h:juniper:ex4600:-
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cpe:2.3:h:juniper:ex4650:-
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cpe:2.3:h:juniper:ex9200:-
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cpe:2.3:h:juniper:ex9250:-
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cpe:2.3:h:juniper:qfk5110:-
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cpe:2.3:h:juniper:qfk5120:-
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cpe:2.3:h:juniper:qfk5130:-
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cpe:2.3:h:juniper:qfk5200:-
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cpe:2.3:h:juniper:qfk5210:-
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cpe:2.3:h:juniper:qfk5220:-
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cpe:2.3:h:juniper:qfk5230:-
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cpe:2.3:h:juniper:qfk5700:-
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cpe:2.3:o:juniper:junos:21.1
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cpe:2.3:o:juniper:junos:21.2
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cpe:2.3:o:juniper:junos:21.3
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cpe:2.3:o:juniper:junos:21.4
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cpe:2.3:o:juniper:junos:22.1
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cpe:2.3:o:juniper:junos:22.2
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cpe:2.3:o:juniper:junos:22.3
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cpe:2.3:o:juniper:junos:22.4