TI-2019-01326 Aliases CVE-2019-1700 GHSA-458g-fg5w-22xq

Resource management flaw in Cisco Firepower Extensible Operating System

LOW 28CWE-399Published 2019-02-21 · Updated 2024-11-21

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.

Summary

A vulnerability in field-programmable gate array (FPGA) ingress buffer management for the Cisco Firepower 9000 Series with the Cisco Firepower 2-port 100G double-width network module (PID: FPR9K-DNM-2X100G) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. Manual intervention may be required before a device will resume normal operations. The vulnerability is due to a logic error in the FPGA related to the processing of different types of input packets. An attacker could exploit this vulnerability by being on the adjacent subnet and sending a crafted sequence of input packets to a specific interface on an affected device. A successful exploit could allow the attacker to cause a queue wedge condition on the interface. When a wedge occurs, the affected device will stop processing any additional packets that are received on the wedged interface. Version 2.2 is affected.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00501 43rd 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 Extensible Operating System (FXOS)	2.2	—	No fix listed	CNA

Cisco Firepower Extensible Operating System (FXOS) VendorCisco Affected 2.2 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:cisco:firepower_9000_firmware:2.2\(200.8\):::::::*	2.2(200.8)	Vulnerable	Cisco
cpe:2.3:h:cisco:firepower_9000:-:::::::*	not specified by NVD	Running on	Cisco

cpe:2.3:o:cisco:firepower_9000_firmware:2.2\(200.8\):*:*:*:*:*:*:* Versions 2.2(200.8) Vulnerable ·Cisco
cpe:2.3:h:cisco:firepower_9000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2019-1700
2026-10-03 Alias added: GHSA-458g-fg5w-22xq

References

Advisory 1

20190220 Cisco Firepower 9000 Series Firepower 2-Port 100G Double-Width Network Module Queue Wedge Denial of Service Vulnerability

TI-2018-00263 Improper input validation in Cisco FXOS and NX-OS unknown CVSS 3.0CRITICAL 9.8
TI-2018-00273 Improper input validation in Cisco FXOS and NX-OS unknown CVSS 3.0CRITICAL 9.8
TI-2018-00271 Improper input validation in Cisco FXOS and NX-OS unknown CVSS 3.0CRITICAL 9.8
TI-2018-00267 Improper input validation in Cisco FXOS and NX-OS unknown CVSS 3.0CRITICAL 9.8
TI-2018-00264 NULL pointer dereference in Cisco FXOS and NX-OS unknown CVSS 3.0HIGH 8.6
TI-2019-01275 Cisco Secure Boot Hardware Tampering Vulnerability CVSS 3.1MEDIUM 6.7

Sources

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