What is CVE-2021-0257?

CVE-2021-0257 is a medium-severity vulnerability in Juniper Ex9200, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2021-04-22.

How severe is CVE-2021-0257?

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

Resource exhaustion in Juniper Ex9200

CVE-2021-0257

On Juniper Networks MX Series and EX9200 Series platforms with Trio-based MPCs (Modular Port Concentrators) where Integrated Routing and Bridging (IRB) interfaces are configured and mapped to a VPLS instance or a Bridge-Domain, certain Lay…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.004 (32.0th 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 Ex9200
Juniper Junos — versions 17.3, 17.4, 18.2
Juniper Mx10
Juniper Mx10003
Juniper Mx10008
Juniper Mx10016
Juniper Mx104
Juniper Mx150
Juniper Mx2008
Juniper Mx2010

Weakness classification (CWE)

References

sirt@juniper.net (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0257?: CVE-2021-0257 is a medium-severity vulnerability in Juniper Ex9200, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2021-04-22.
How severe is CVE-2021-0257?: Medium severity. CVSS v3 base score is 6.5 out of 10.