Is there a public exploit for CVE-2026-73440?

No public exploit for CVE-2026-73440 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-73440?

CVE-2026-73440 scores CVSS 2.3 (v4.0), rated low. EPSS puts the chance of exploitation in the next 30 days at 0.27%.

What does CVE-2026-73440 affect?

CVE-2026-73440 affects Arista Networks EOS.

2.3 Low

On affected platforms running Arista EOS with Simple Network Management Protocol (SNMP) configured, SNMPv3 local or remote user credentials…

CVE-2026-73440

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.

Assessment

CVSS: 2.3 (v4.0)
Severity: Low
EPSS: 0.27% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 16 September 2026
Last updated: 8 November 2026
Affected: Arista Networks · EOS
Assigner: Arista

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24734-security-advisory-0178

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