How severe is CVE-2019-12699?

CVE-2019-12699 has a CVSS 3.x base score of 7.8, 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 high, and availability high.

Is CVE-2019-12699 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-12699?

CVE-2019-12699 primarily affects Cisco Firepower 9300 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-12699?

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-2019-12699 published?

CVE-2019-12699 was published on 2019-10-02 and last updated on 2026-08-11.

CVE-2019-12699

CVE-2019-12699 is a high-severity vulnerability in Cisco Firepower 9300 Firmware with a CVSS 3.x base score of 7.8. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Cisco Firepower 9300 Firmware
Published: 2019-10-02
Last modified: 2026-08-11

Description

Multiple vulnerabilities in the CLI of Cisco FXOS Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute commands on the underlying operating system (OS) with root privileges. These vulnerabilities are due to insufficient input validation. An attacker could exploit these vulnerabilities by including crafted arguments to specific CLI commands. A successful exploit could allow the attacker to execute commands on the underlying OS with root privileges.

Frequently asked questions

What is CVE-2019-12699?: Multiple vulnerabilities in the CLI of Cisco FXOS Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute commands on the underlying operating system (OS) with root privileges. These vulnerabilities are due to insufficient input validation. An attacker could exploit these vulnerabilities by including crafted arguments to specific CLI commands. A successful exploit could allow the attacker to execute commands on the underlying OS with root privileges.
How severe is CVE-2019-12699?: CVE-2019-12699 has a CVSS 3.x base score of 7.8, 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 high, and availability high.
Is CVE-2019-12699 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-12699?: CVE-2019-12699 primarily affects Cisco Firepower 9300 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-12699?: 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-2019-12699 published?: CVE-2019-12699 was published on 2019-10-02 and last updated on 2026-08-11.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-fxos-cmd-inject

Affected products (6)

cpe:2.3:o:cisco:firepower_9300_firmware:2.4\(1.214\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:firepower_9300_firmware:2.4\(1.216\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:firepower_9300_firmware:2.4\(2.54\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:firepower_9300_firmware:r241:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:*

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