How severe is CVE-2019-1688?

CVE-2019-1688 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2019-1688 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-1688?

CVE-2019-1688 affects Cisco Network Assurance Engine. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-1688?

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-2019-1688 published?

CVE-2019-1688 was published on 2019-02-12 and last updated on 2026-06-17.

CVE-2019-1688

CVE-2019-1688 is a high-severity vulnerability in Cisco Network Assurance Engine with a CVSS 3.x base score of 7.1. 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-798.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 5.6
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Cisco Network Assurance Engine
Published: 2019-02-12
Last modified: 2026-06-17

Description

A vulnerability in the management web interface of Cisco Network Assurance Engine (NAE) could allow an unauthenticated, local attacker to gain unauthorized access or cause a Denial of Service (DoS) condition on the server. The vulnerability is due to a fault in the password management system of NAE. An attacker could exploit this vulnerability by authenticating with the default administrator password via the CLI of an affected server. A successful exploit could allow the attacker to view potentially sensitive information or bring the server down, causing a DoS condition. This vulnerability affects Cisco Network Assurance Engine (NAE) Release 3.0(1). The default password condition only affects new installations of Release 3.0(1).

Frequently asked questions

What is CVE-2019-1688?: A vulnerability in the management web interface of Cisco Network Assurance Engine (NAE) could allow an unauthenticated, local attacker to gain unauthorized access or cause a Denial of Service (DoS) condition on the server. The vulnerability is due to a fault in the password management system of NAE. An attacker could exploit this vulnerability by authenticating with the default administrator password via the CLI of an affected server. A successful exploit could allow the attacker to view potentially sensitive information or bring the server down, causing a DoS condition. This vulnerability affects Cisco Network Assurance Engine (NAE) Release 3.0(1). The default password condition only affects new installations of Release 3.0(1).
How severe is CVE-2019-1688?: CVE-2019-1688 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2019-1688 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-1688?: CVE-2019-1688 affects Cisco Network Assurance Engine. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-1688?: 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-2019-1688 published?: CVE-2019-1688 was published on 2019-02-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cisco:network_assurance_engine:3.0\(1\):*:*:*:*:*:*:*

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