How severe is CVE-2019-1811?

CVE-2019-1811 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-2019-1811 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-1811?

CVE-2019-1811 affects Cisco Nx-os. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-1811?

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

When was CVE-2019-1811 published?

CVE-2019-1811 was published on 2019-05-15 and last updated on 2026-06-17.

CVE-2019-1811

CVE-2019-1811 is a medium-severity vulnerability in Cisco Nx-os 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% (18th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Affected product: Cisco Nx-os
Published: 2019-05-15
Last modified: 2026-06-17

Description

A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software image on an affected device. The vulnerability exists because software digital signatures are not properly verified during CLI command execution. An attacker could exploit this vulnerability to install an unsigned software image on an affected device.

Frequently asked questions

What is CVE-2019-1811?: A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software image on an affected device. The vulnerability exists because software digital signatures are not properly verified during CLI command execution. An attacker could exploit this vulnerability to install an unsigned software image on an affected device.
How severe is CVE-2019-1811?: CVE-2019-1811 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-2019-1811 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-1811?: CVE-2019-1811 affects Cisco Nx-os. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-1811?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-1811 published?: CVE-2019-1811 was published on 2019-05-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

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