CVE-2020-26569 describes a medium-severity vulnerability in Arista EOS affecting EVPN VxLAN setups, specifically versions 4.21.12M and below, 4.22.7M and below, 4.23.5M and below, and 4.24.2F and below. Malformed packets can lead to incorrect MAC-to-IP bindings, causing improper forwarding across VLAN boundaries and resulting in traffic discard. The CVSS score of 5.9 indicates a network-based attack with high attack complexity, leading to high availability impact but no confidentiality or integrity impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.21.0f, <= 4.21.12mCPE matchmatch criteria | cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* | ||
>= 4.22.0f, <= 4.22.7mCPE matchmatch criteria | cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* | ||
>= 4.23.0f, <= 4.23.5mCPE matchmatch criteria | cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* | ||
>= 4.24.0f, <= 4.24.2fCPE matchmatch criteria | cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.