6.5
CVSSv3

CVE-2021-31370

Published: 19/10/2021 Updated: 25/10/2021
CVSS v2 Base Score: 3.3 | Impact Score: 2.9 | Exploitability Score: 6.5
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 294
Vector: AV:A/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Summary

An Incomplete List of Disallowed Inputs vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX5000 Series and EX4600 Series allows an adjacent unauthenticated attacker which sends a high rate of specific multicast traffic to cause control traffic received from the network to be dropped. This will impact control protocols (including but not limited to routing-protocols) and lead to a Denial of Service (DoS). Continued receipt of this specific multicast traffic will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on QFX5000 and EX4600 Series: All versions before 17.3R3-S12; 17.4 versions before 17.4R3-S5; 18.3 versions before 18.3R3-S5; 18.4 versions before 18.4R3-S9; 19.1 versions before 19.1R3-S6; 19.2 versions before 19.2R1-S7, 19.2R3-S3; 19.3 versions before 19.3R2-S6, 19.3R3-S3; 19.4 versions before 19.4R1-S4, 19.4R3-S3; 20.1 versions before 20.1R2-S2, 20.1R3-S1; 20.2 versions before 20.2R3-S2; 20.3 versions before 20.3R3; 20.4 versions before 20.4R2-S2, 20.4R3; 21.1 versions before 21.1R1-S1, 21.1R2.

Vulnerability Trend

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juniper junos 17.3

juniper junos 17.4

juniper junos 18.3

juniper junos 18.4

juniper junos 19.1

juniper junos 19.2

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juniper junos 20.1

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juniper junos 20.4

juniper junos 21.1