CVE-2026-73440: Security Advisory 0178
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 18% of scored CVEs
DescriptionCVE.org
On affected platforms running Arista EOS with Simple Network Management Protocol (SNMP) configured, SNMPv3 local or remote user credentials may be exposed as a one-way hashed, localized key value within the device's running and sanitized configurations. An authenticated user who gains access to this sensitive information could leverage it to perform unauthorized read operations on SNMP tables or to send fraudulent trap notifications to the Network Management System (NMS). This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.
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 1.0.0 before 4.33.0F
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
- Weakness
- Improper Removal of Sensitive Information Before Storage or Transfer · Information Disclosure
- Vendor
- Arista Networks
- Published
- September 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-73440 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.