How severe is CVE-2025-5090?

CVE-2025-5090 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-5090 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-5090?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-5090 have an EU (EUVD) identifier?

Yes. CVE-2025-5090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-210076.

When was CVE-2025-5090 published?

CVE-2025-5090 was published on 2026-06-05 and last updated on 2026-06-17.

CVE-2025-5090

CVE-2025-5090 is a medium-severity vulnerability with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 7.1
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-210076
Weakness: CWE-20
Published: 2026-06-05
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-5090?: 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.
How severe is CVE-2025-5090?: CVE-2025-5090 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-5090 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-5090?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-5090 have an EU (EUVD) identifier?: Yes. CVE-2025-5090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-210076.
When was CVE-2025-5090 published?: CVE-2025-5090 was published on 2026-06-05 and last updated on 2026-06-17.

References

https://www.arista.com/en/support/advisories-notices/security-advisory/22868-security-advisory-0126

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