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Vulnerabilities

Vulnerability · CVE-2025-2826

n affected platforms running Arista EOS, ACL policies may not be enforced.

Published May 27, 2025 · catalog updated May 28, 2025 · Arista Networks EOS

Check this week

CVE-2025-2826 is not in CISA KEV. FIRST estimates a 52.00% chance of exploitation in the next 30 days. Check whether you run Arista Networks EOS.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Low2.6
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
52.00%
Remediation
Advisory link
Affected products
vendor Arista Networks EOS 4.33.2F

n affected platforms running Arista EOS, ACL policies may not be enforced. IPv4 ingress ACL, MAC ingress ACL, or IPv6 standard ingress ACL enabled on one or more ethernet or LAG interfaces may result in ACL policies not being enforced for ingress packets. This can cause incoming packets to incorrectly be allowed or denied. The two symptoms of this issue on the affected release and platform are: * Packets which should be permitted may be dropped and, * Packets which should be dropped may be permitted.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Arista Networks EOS 4.33.2F4.33.2F

How to fix CVE-2025-2826

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-2826 is not in CISA KEV. FIRST estimates a 52.00% chance of exploitation in the next 30 days. Check whether you run Arista Networks EOS.

Which versions are affected?

Compare what you have installed with Arista Networks EOS 4.33.2F 4.33.2F. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 52.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 27, 2025 · EUVD

    Detected

    n affected platforms running Arista EOS, ACL policies may not be enforced. IPv4 ingress ACL, MAC ingress ACL, or IPv6 standard ingress ACL enabled on one or more ethernet or LAG interfaces may result in ACL policies not being enforced for ingress packets. This can cause incoming packets to incorrectly be allowed or denied. The two symptoms of this issue on the affected release and platform are: *

  2. May 28, 2025 · EUVD

    Updated

    n affected platforms running Arista EOS, ACL policies may not be enforced. IPv4 ingress ACL, MAC ingress ACL, or IPv6 standard ingress ACL enabled on one or more ethernet or LAG interfaces may result in ACL policies not being enforced for ingress packets. This can cause incoming packets to incorrectly be allowed or denied. The two symptoms of this issue on the affected release and platform are: *

Sources

  • CVE.orgVulnerability recordCVE-2025-2826

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-16313

    n affected platforms running Arista EOS, ACL policies may not be enforced. IPv4 ingress ACL, MAC ingress ACL, or IPv6 standard ingress ACL enabled on one or more ethernet or LAG interfaces may result in ACL policies not being enforced for ingress packets. This can cause incoming

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog May 28, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.