CVSS 4.0
7.1 highCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:L/SI:H/SA:NCVE-2026-120977 Security Advisory 0217
High (7.1) in arista networks eos. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.
On affected platforms running Arista EOS with 802.1X with Dynamic Host Configuration Protocol (DHCP) device profiling enabled, a network-adjacent attacker can send a crafted DHCP packet to force the device to record a spoofed device profile. This may potentially allow the authenticated supplicant to acquire unauthorized access to a network segment with elevated privileges.
Severity
CVSS 3.1
8.2 highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N- EPSS
- 0.2% estimated probability of exploitation activity in the next 30 days; 5th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: total, assessed 2026-11-13. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-807 Reliance on Untrusted Inputs in a Security Decision
- OWASP Top 10
- A06:2025 Insecure Design
- Published
- Modified
- Assigned by
- Arista (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
- arista networks:eos
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Arista Networks EOS | from 4.31.2F before 4.32.0F |
| Arista Networks EOS | from 4.32.0F before 4.33.0F |
| Arista Networks EOS | from 4.33.0F through 4.33.9M |
| Arista Networks EOS | from 4.34.0F through 4.34.7M |
| Arista Networks EOS | from 4.35.0F through 4.35.5M |
| Arista Networks EOS | from 4.36.0F through 4.36.2F |