CVE-2021-28362
7.5 · HIGHOverview
CVE-2021-28362 is a high-severity vulnerability affecting contiki-os contiki. It was published on March 24, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An issue was discovered in Contiki through 3.0. When sending an ICMPv6 error message because of invalid extension header options in an incoming IPv6 packet, there is an attempt to remove the RPL extension headers. Because the packet length and the extension header length are unchecked (with respect to the available data) at this stage, and these variables are susceptible to integer underflow, it is possible to construct an invalid extension header that will cause memory corruption issues and lead to a Denial-of-Service condition. This is related to rpl-ext-header.c.
Remediation
Check the references section for vendor advisories and patches from contiki-os. Update contiki to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| contiki-os | contiki | 0 | Affected |
Frequently Asked Questions
What is CVE-2021-28362?
CVE-2021-28362 is a high-severity vulnerability affecting contiki-os contiki. It was published on March 24, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2021-28362?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-28362?
Check the references section for vendor advisories and patches from contiki-os. Update contiki to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-28362?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-28362 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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