TI-2018-00242 Aliases CVE-2018-0283 GHSA-mgq6-c2x6-44g8

Cryptographic flaw in Cisco Firepower System Software

LOW 35CWE-310Published 2018-05-02 · Updated 2024-11-29

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-319.

Summary

A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to restart an instance of the Snort detection engine on an affected device, resulting in a brief denial of service (DoS) condition. The vulnerability is due to the incorrect handling of Transport Layer Security (TLS) TCP connection setup for the affected software. An attacker could exploit this vulnerability by sending crafted TLS traffic to an affected device. A successful exploit could allow the attacker to cause the Snort detection engine on the affected device to restart, resulting in a DoS condition. Cisco Bug IDs: CSCvg99327.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01358 71st 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: Yes
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 Firepower System Software	Cisco Firepower System Software	—	No fix listed	CNA

Cisco Firepower System Software Vendor— Affected Cisco Firepower System Software Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:secure_firewall_management_center:6.1.0:::::::*	6.1.0	Vulnerable	Cisco
cpe:2.3:a:cisco:secure_firewall_management_center:6.2.0:::::::*	6.2.0	Vulnerable	Cisco
cpe:2.3:a:cisco:secure_firewall_management_center:6.2.2:::::::*	6.2.2	Vulnerable	Cisco
cpe:2.3:a:cisco:secure_firewall_management_center:6.2.3:::::::*	6.2.3	Vulnerable	Cisco

cpe:2.3:a:cisco:secure_firewall_management_center:6.1.0:*:*:*:*:*:*:* Versions 6.1.0 Vulnerable ·Cisco
cpe:2.3:a:cisco:secure_firewall_management_center:6.2.0:*:*:*:*:*:*:* Versions 6.2.0 Vulnerable ·Cisco
cpe:2.3:a:cisco:secure_firewall_management_center:6.2.2:*:*:*:*:*:*:* Versions 6.2.2 Vulnerable ·Cisco
cpe:2.3:a:cisco:secure_firewall_management_center:6.2.3:*:*:*:*:*:*:* Versions 6.2.3 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-0283
2026-10-03 Alias added: GHSA-mgq6-c2x6-44g8

References

Advisory 1

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180502-fpwr-codp

TI-2026-16344 Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
TI-2026-16292 Cisco Secure Firewall Management Center Authentication Bypass Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
TI-2026-16502 Cisco Secure Firewall Management Center Software Static Credential Vulnerability KEVCVSS 3.1MEDIUM 5.3
TI-2016-05515 The Threat Management Console in Cisco Firepower Management Center 5.2.0 through 6.0.1… CVSS 3.1HIGH 8.8
TI-2025-14563 Cisco Secure Firewall Management Center Software Radius Remote Code Execution Vulnerability CVSS 3.1CRITICAL 10.0
TI-2023-06757 Improper privilege management in Cisco Firepower Management Center CVSS 3.1CRITICAL 9.9

See all 186 →

Sources

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