CVE-2021-0226CWE-665

Junos OS Evolved: The IPv6 BGP session will flap due to receipt of a specific IPv6 packet

High · published April 22, 2021

CVSS v3.1
7.1
EPSS
1%
Percentile
58.6
In the wild
Unconfirmed
What it is

On Juniper Networks Junos OS Evolved devices, receipt of a specific IPv6 packet may cause an established IPv6 BGP session to terminate, creating a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue does not affect IPv4 BGP sessions. This issue affects IBGP or EBGP peer sessions with IPv6. This issue affects: Juniper Networks Junos OS Evolved: 19.4 versions prior to 19.4R2-S3-EVO; 20.1 versions prior to 20.1R2-S3-EVO; 20.2 versions prior to 20.2R2-S1-EVO; 20.3 versions prior to 20.3R2-EVO. This issue does not affect Juniper Networks Junos OS releases.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
CVSS v4.0
Not supplied
EPSS
0.00876 · 58.6th percentile
Weakness
CWE-665 · Improper Initialization
Published
2021-04-22T19:36Z
EPSS history
Timeline
  • 22 APR 19:36Z
    Junos OS Evolved: The IPv6 BGP session will flap due to receipt of a specific IPv6 packet
    cvelistv5