CVE-2021-28510
5.3 · MEDIUMOverview
CVE-2021-28510 is a medium-severity vulnerability affecting arista eos. It was published on January 26, 2023 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
For certain systems running EOS, a Precision Time Protocol (PTP) packet of a management/signaling message with an invalid Type-Length-Value (TLV) causes the PTP agent to restart. Repeated restarts of the service will make the service unavailable.
Remediation
Check the references section for vendor advisories and patches from arista. Update eos 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 |
|---|---|---|---|
| arista | eos | >= 0, < 4.23.10 | Affected |
Frequently Asked Questions
What is CVE-2021-28510?
CVE-2021-28510 is a medium-severity vulnerability affecting arista eos. It was published on January 26, 2023 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2021-28510?
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-28510?
Check the references section for vendor advisories and patches from arista. Update eos 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-2021-28510?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-28510 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
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