How severe is CVE-2020-3402?

CVE-2020-3402 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-3402 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-3402?

CVE-2020-3402 affects Cisco Unified Customer Voice Portal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-3402?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-3402 published?

CVE-2020-3402 was published on 2020-07-02 and last updated on 2026-06-17.

CVE-2020-3402

CVE-2020-3402 is a high-severity vulnerability in Cisco Unified Customer Voice Portal with a CVSS 3.x base score of 7.5. 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-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Cisco Unified Customer Voice Portal
Published: 2020-07-02
Last modified: 2026-06-17

Description

A vulnerability in the Java Remote Method Invocation (RMI) interface of Cisco Unified Customer Voice Portal (CVP) could allow an unauthenticated, remote attacker to access sensitive information on an affected device. The vulnerability exists because certain RMI listeners are not properly authenticated. An attacker could exploit this vulnerability by sending a crafted request to the affected listener. A successful exploit could allow the attacker to access sensitive information on an affected device.

Frequently asked questions

What is CVE-2020-3402?: A vulnerability in the Java Remote Method Invocation (RMI) interface of Cisco Unified Customer Voice Portal (CVP) could allow an unauthenticated, remote attacker to access sensitive information on an affected device. The vulnerability exists because certain RMI listeners are not properly authenticated. An attacker could exploit this vulnerability by sending a crafted request to the affected listener. A successful exploit could allow the attacker to access sensitive information on an affected device.
How severe is CVE-2020-3402?: CVE-2020-3402 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-3402 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-3402?: CVE-2020-3402 affects Cisco Unified Customer Voice Portal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-3402?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-3402 published?: CVE-2020-3402 was published on 2020-07-02 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cvp-info-dislosure-NZBEwj9V

Affected products (1)

cpe:2.3:a:cisco:unified_customer_voice_portal:*:*:*:*:*:*:*:*

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