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Description

CVX is not resilient to unexpected messages from a connected switch. This leads to agent crashes on CVX causing instability in the CVX cluster. An attacker could use this behavior to create a denial of service (DoS) scenario. Note that this would require the attacker to have a high privilege access to the connected switch to be able to send custom TCP packets to the CVX.

PUBLISHED Reserved 2025-05-22 | Published 2026-06-05 | Updated 2026-06-05 | Assigner Arista




MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

HIGH: 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-20: Improper Input Validation

Product status

Default status
unaffected

4.34.0F (custom)
affected

4.33.0M (custom)
affected

4.32.0M (custom)
affected

4.31.0 (custom) before 4.32.0
affected

4.30.0 (custom) before 4.31.0
affected

References

www.arista.com/...rity-advisory/22868-security-advisory-0126 vendor-advisory

cve.org (CVE-2025-5090)

nvd.nist.gov (CVE-2025-5090)

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