What is CVE-2021-0242?

CVE-2021-0242 is a medium-severity vulnerability in Juniper Networks Junos Os, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2021-04-22.

How severe is CVE-2021-0242?

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

Buffer overflow in Juniper Networks Junos Os

CVE-2021-0242

A vulnerability due to the improper handling of direct memory access (DMA) buffers on EX4300 switches on Juniper Networks Junos OS allows an attacker sending specific unicast frames to trigger a Denial of Service (DoS) condition by exhaust…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (22.9th 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 Networks Junos Os — versions 17.3, 17.4, 18.1

Weakness classification (CWE)

References

kb.juniper.net/JSA11135 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-0242?: CVE-2021-0242 is a medium-severity vulnerability in Juniper Networks Junos Os, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2021-04-22.
How severe is CVE-2021-0242?: Medium severity. CVSS v3 base score is 6.5 out of 10.