How severe is CVE-2020-3138?

CVE-2020-3138 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-3138 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-3138?

CVE-2020-3138 affects Cisco Enterprise Network Function Virtualization Infrastructure. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-3138?

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

When was CVE-2020-3138 published?

CVE-2020-3138 was published on 2020-02-19 and last updated on 2026-06-17.

CVE-2020-3138

CVE-2020-3138 is a medium-severity vulnerability in Cisco Enterprise Network Function Virtualization Infrastructure with a CVSS 3.x base score of 6.7. 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-347.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
CVSS v2: 7.2
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Affected product: Cisco Enterprise Network Function Virtualization Infrastructure
Published: 2020-02-19
Last modified: 2026-06-17

Description

A vulnerability in the upgrade component of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, local attacker to install a malicious file when upgrading. The vulnerability is due to insufficient signature validation. An attacker could exploit this vulnerability by providing a crafted upgrade file. A successful exploit could allow the attacker to upload crafted code to the affected device.

Frequently asked questions

What is CVE-2020-3138?: A vulnerability in the upgrade component of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, local attacker to install a malicious file when upgrading. The vulnerability is due to insufficient signature validation. An attacker could exploit this vulnerability by providing a crafted upgrade file. A successful exploit could allow the attacker to upload crafted code to the affected device.
How severe is CVE-2020-3138?: CVE-2020-3138 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-3138 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-3138?: CVE-2020-3138 affects Cisco Enterprise Network Function Virtualization Infrastructure. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-3138?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-3138 published?: CVE-2020-3138 was published on 2020-02-19 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-codex-shs4NhvS

Affected products (1)

cpe:2.3:a:cisco:enterprise_network_function_virtualization_infrastructure:*:*:*:*:*:*:*:*

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