What is CVE-2021-31370?

CVE-2021-31370 is a medium-severity vulnerability in Juniper Ex4600, classified under Incomplete List of Disallowed Inputs. CVSS score: 6.5/10. Published 2021-10-19.

How severe is CVE-2021-31370?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Juniper Ex4600

CVE-2021-31370

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 multic…

EPSS: 0.004 (32.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Juniper Ex4600
Juniper Ex4600-vc
Juniper Ex4650
Juniper Junos — versions 17.3, 17.4, 18.3
Juniper Qfx5100
Juniper Qfx5100-96s
Juniper Qfx5110
Juniper Qfx5120
Juniper Qfx5130
Juniper Qfx5200

Weakness classification (CWE)

CWE-184 — Incomplete List of Disallowed Inputs

References

sirt@juniper.net (x_refsource_CONFIRM, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-31370?: CVE-2021-31370 is a medium-severity vulnerability in Juniper Ex4600, classified under Incomplete List of Disallowed Inputs. CVSS score: 6.5/10. Published 2021-10-19.
How severe is CVE-2021-31370?: Medium severity. CVSS v3 base score is 6.5 out of 10.