Is CVE-2021-28510 in the CISA KEV catalog?

No. CVE-2021-28510 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-28510?

CVE-2021-28510 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2021-28510?

CVE-2021-28510 has an EPSS score of 1.00% (59th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-28510?

Upgrade eos to 4.27.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-28510

MEDIUM

5.3

CVSS v3

NVD

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.

CWE-400Resource Exhaustion CWE-1284

How to fix

Remediation Available

eosNVD

Affected:>= 4.27.0, < 4.27.1Fixed in:4.27.1CVE-2021-28510derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

1.00%probability of exploitation in 30 days

59thpercentile

Moderate risk: more likely to be exploited than 59% of all known CVEs.

References

Exploit1

arista.com

Embed a live status badge for CVE-2021-28510

Markdown

[![CVE-2021-28510](https://tridentstack.com/cve/badge/CVE-2021-28510.svg)](https://tridentstack.com/cve/CVE-2021-28510)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-28510"><img src="https://tridentstack.com/cve/badge/CVE-2021-28510.svg" alt="CVE-2021-28510"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.