CVE-2025-2826CWE-1284

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.

Low · published May 27, 2025

CVSS v3.1
2.6
EPSS
1%
Percentile
44.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
2.6 · LOW
Vector
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00540 · 44.7th percentile
Weakness
CWE-1284 · Improper Validation of Specified Quantity in Input
Published
2025-05-27T22:22Z
EPSS history
Timeline
  • 27 MAY 22:22Z
    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.
    cvelistv5