TI-2020-02866 Aliases CVE-2020-3309 GHSA-37wp-r5gr-q42h

Cisco Firepower Device Manager On-Box Software Arbitrary File Overwrite Vulnerability

LOW 35CWE-20Published 2020-05-06 · Updated 2024-11-15

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

A vulnerability in Cisco Firepower Device Manager (FDM) On-Box software could allow an authenticated, remote attacker to overwrite arbitrary files on the underlying operating system of an affected device. The vulnerability is due to improper input validation. An attacker could exploit this vulnerability by uploading a malicious file to an affected device. A successful exploit could allow the attacker to overwrite arbitrary files on as well as modify the underlying operating system of an affected device.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01766 78th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	Cisco Firepower Threat Defense Software	all versions	—	No fix listed	CNA

Cisco Firepower Threat Defense Software VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:firepower_device_manager_on-box::::::::	before 6.2.3	Vulnerable	Cisco

cpe:2.3:a:cisco:firepower_device_manager_on-box:*:*:*:*:*:*:*:* Versions before 6.2.3 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-3309
2026-10-03 Alias added: GHSA-37wp-r5gr-q42h

References

Advisory 1

20200506 Cisco Firepower Device Manager On-Box Software Arbitrary File Overwrite Vulnerability

TI-2021-01245 Cisco Firepower Device Manager On-Box Software Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
TI-2020-02867 Cisco Firepower Device Manager On-Box Software XML Parsing Vulnerability CVSS 3.1MEDIUM 4.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences