What is CVE-2021-0211?

CVE-2021-0211 is a critical-severity vulnerability in Juniper Ex2200, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 10.0/10. Published 2021-01-15.

How severe is CVE-2021-0211?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Vulnerability in Juniper Ex2200

CVE-2021-0211

An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing Protocol Daemon (RPD) service allows an attacker to send a valid BGP FlowSpec message thereby causing an unexpected change in…

EPSS: 0.013 (67.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H.

Affected products

Juniper Ex2200
Juniper Ex2200-c
Juniper Ex2200-vc
Juniper Ex2300
Juniper Ex2300-c
Juniper Ex2300m
Juniper Ex3200
Juniper Ex3300
Juniper Ex3300-vc
Juniper Ex3400

Weakness classification (CWE)

CWE-754 — Improper Check for Unusual or Exceptional Conditions

References

sirt@juniper.net (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0211?: CVE-2021-0211 is a critical-severity vulnerability in Juniper Ex2200, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 10.0/10. Published 2021-01-15.
How severe is CVE-2021-0211?: Critical severity. CVSS v3 base score is 10.0 out of 10.