How severe is CVE-2021-0299?

This vulnerability has a severity rating of HIGH with a CVSS score of 7.5 out of 10.

What type of vulnerability is CVE-2021-0299?

This is classified as CWE-755, which is a common weakness in software security.

CVE-2021-0299 - HIGH Severity | CVSS 7.5

Vulnerability Description

An Improper Handling of Exceptional Conditions vulnerability in the processing of a transit or directly received malformed IPv6 packet in Juniper Networks Junos OS results in a kernel crash, causing the device to restart, leading to a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects systems with IPv6 configured. Devices with only IPv4 configured are not vulnerable to this issue. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S1, 20.2R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.4R1.

Related Vulnerabilities

CVE-2011-4625

HIGH

CVSS:7.5(High)

simplesamlphp before 1.6.3 (squeeze) and before 1.8.2 (sid) incorrectly handles XML encryption which could allow remote attackers to decrypt or forge messages.

CWE-7552011

CVE-2012-1109

HIGH

CVSS:7.5(High)

mwlib 0.13 through 0.13.4 has a denial of service vulnerability when parsing #iferror magic functions

CWE-7552012

CVE-2015-2688

HIGH

CVSS:7.5(High)

buf_pullup in Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle unexpected arrival times of buffers with invalid layouts, which allows remote attackers to cause a denial of serv...

CWE-7552015

CVE-2016-11026

HIGH

CVSS:7.5(High)

An issue was discovered on Samsung mobile devices with KK(4.4), L(5.0/5.1), and M(6.0) software. BootReceiver allows attackers to trigger a system crash because of incorrect exception handling. The Sa...

CWE-7552016

CVE-2017-13199

HIGH

CVSS:7.5(High)

In Bitmap.ccp if Bitmap.nativeCreate fails an out of memory exception is not thrown leading to a java.io.IOException later on. This could lead to a remote denial of service of a critical system proces...

CWE-7552017

CVE-2017-14178

HIGH

CVSS:7.5(High)

In snapd 2.27 through 2.29.2 the 'snap logs' command could be made to call journalctl without match arguments and therefore allow unprivileged, unauthenticated users to bypass systemd-journald's acces...

CWE-7552017