What is CVE-2021-0251?

CVE-2021-0251 is a high-severity vulnerability in Juniper Junos, classified under NULL Pointer Dereference. CVSS score: 8.6/10. Published 2021-04-22.

How severe is CVE-2021-0251?

High severity. CVSS v3 base score is 8.6 out of 10.

NULL pointer dereference in Juniper Junos

CVE-2021-0251

A NULL Pointer Dereference vulnerability in the Captive Portal Content Delivery (CPCD) services daemon (cpcd) of Juniper Networks Junos OS on MX Series with MS-PIC, MS-SPC3, MS-MIC or MS-MPC allows an attacker to send malformed HTTP packet…

EPSS: 0.011 (60.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Juniper Junos — versions 17.3, 17.4, 18.1
Juniper Mx10
Juniper Mx10003
Juniper Mx10008
Juniper Mx10016
Juniper Mx104
Juniper Mx150
Juniper Mx2008
Juniper Mx2010
Juniper Mx2020

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

sirt@juniper.net (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0251?: CVE-2021-0251 is a high-severity vulnerability in Juniper Junos, classified under NULL Pointer Dereference. CVSS score: 8.6/10. Published 2021-04-22.
How severe is CVE-2021-0251?: High severity. CVSS v3 base score is 8.6 out of 10.