What is CVE-2021-0243?

CVE-2021-0243 is a medium-severity vulnerability in Juniper Networks Junos Os, classified under CWE-241. CVSS score: 4.7/10. Published 2021-04-22.

How severe is CVE-2021-0243?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Vulnerability in Juniper Networks Junos Os

CVE-2021-0243

Improper Handling of Unexpected Data in the firewall policer of Juniper Networks Junos OS on EX4300 switches allows matching traffic to exceed set policer limits, possibly leading to a limited Denial of Service (DoS) condition. When the fi…

EPSS: 0.001 (23.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.

Affected products

Juniper Networks Junos Os — versions unspecified, 17.4, 18.1

Weakness classification (CWE)

CWE-241

References

kb.juniper.net/JSA11136 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-0243?: CVE-2021-0243 is a medium-severity vulnerability in Juniper Networks Junos Os, classified under CWE-241. CVSS score: 4.7/10. Published 2021-04-22.
How severe is CVE-2021-0243?: Medium severity. CVSS v3 base score is 4.7 out of 10.