CVE-2025-2826: n affected platforms running Arista EOS, ACL policies may not be enforced. IPv4 ingress ACL, MAC ingress ACL, or IPv6 standard ingress ACL enabled ...
Description
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.
Classification
CVE ID: CVE-2025-2826
CVSS Base Severity: LOW
CVSS Base Score: 2.6
CVSS Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected Products
Vendor: Arista Networks
Product: EOS
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.02% (probability of being exploited)
EPSS Percentile: 4.33% (scored less or equal to compared to others)
EPSS Date: 2025-06-05 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-2826https://www.arista.com/en/support/advisories-notices/security-advisory/21414-security-advisory-0120