Protection mechanism failure in Cisco FireSIGHT unknown
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-693.
Summary
A vulnerability in the detection engine of Cisco FireSIGHT System Software could allow an unauthenticated, remote attacker to bypass a URL-based access control policy that is configured to block traffic for an affected system. The vulnerability exists because the affected software incorrectly handles TCP packets that are received out of order when a TCP SYN retransmission is issued. An attacker could exploit this vulnerability by sending a maliciously crafted connection through an affected device. A successful exploit could allow the attacker to bypass a URL-based access control policy that is configured to block traffic for the affected system. Cisco Bug IDs: CSCvh84511.
Why it matters now
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 FireSIGHT unknown | Cisco FireSIGHT unknown | — | No fix listed | CNA |
- Cisco FireSIGHT unknown Vendor— Affected Cisco FireSIGHT unknown Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:secure_firewall_management_center:6.0.0:*:*:*:*:*:*:* | 6.0.0 | Vulnerable | Cisco |
| 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:6.2.1:*:*:*:*:*:*:* | 6.2.1 | 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:6.0.0:*:*:*:*:*:*:* Versions 6.0.0 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:6.2.1:*:*:*:*:*:*:* Versions 6.2.1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_firewall_management_center:6.2.2:*:*:*:*:*:*:* Versions 6.2.2 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0384
- 2026-10-03 Alias added: GHSA-f398-6grg-hg27
References
More Cisco Secure Firewall Management Center vulnerabilities
- 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
Sources
- CVE-2018-0384 · CVE Program
- CVE-2018-0384 · NVD
- FIRST EPSS
- GHSA-f398-6grg-hg27 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences