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CVE record · CVE-2021-28507

An issue has recently been discovered in Arista EOS where, under certain conditions, the service ACL configured for OpenConfig gNOI and OpenConfig RESTCONF might be bypassed, which results in the den…

CVSS 5.5 MediumEPSS 0.0067 · 52nd percentile

Published by the CVE Program (CNA: Arista) at 14 Jan 2022, 19:04 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Arista Networks EOS
  • affected 4.22.x
  • affected 4.26.2F to 4.26.0, inclusive custom
  • affected 4.25.5.1M to 4.25.5, inclusive custom
  • affected 4.25.4M to 4.25.4, inclusive custom
  • affected 4.25.3 to 4.25.0, inclusive custom
  • affected 4.24.7M to 4.24.0, inclusive custom
  • affected 4.23.9M to 4.23.0, inclusive custom
  • affected 4.21.x to 4.21.x, inclusive custom
Identifiers
CVE-2021-28507
CNA
Arista
Weakness (CWE)
CWE-284
Tags
Published
14 Jan 2022
Updated
17 Sept 2024

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.5 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N CNA (Arista)
  • CISA KEV Not listed.
  • EPSS 0.0067, the 52nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 14 Jan 2022. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.