CVE-2026-120979: Security Advisory 0212
Arista Networks · EOS
Vendor fix available · Affected: Arista Networks EOS · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 25% of scored CVEs
DescriptionCVE.org
This vulnerability affects customers using Arista Pathfinder for WAN path selection with Border Gateway Protocol-Link State (BGP-LS) configured for Dynamic Path Selection (DPS). On affected platforms running Arista EOS with BGP-LS configured for DPS, an attacker who has established an authenticated BGP-LS session with the device can send a specially crafted BGP packet to cause incorrect WAN path selection and disrupt traffic forwarding.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Arista Networks · EOSfrom 4.36.0F up to and including 4.36.2F; from 4.35.0F up to and including 4.35.6M; from 4.34.0F up to and including 4.34.8M; from 4.33.0F up to and including 4.33.10M; from 4.32.0F before 4.33.0F; from 1.0.0 before 4.32.0F
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Arista Networks
- Published
- November 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-120979 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.