TI-2018-00256 Aliases CVE-2018-0297 GHSA-9j44-j9v3-4928

Protection mechanism failure in Cisco Firepower Threat Defense Software

LOW 34CWE-693Published 2018-05-17 · Updated 2024-11-29

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 Firepower Threat Defense software could allow an unauthenticated, remote attacker to bypass a configured Secure Sockets Layer (SSL) Access Control (AC) policy to block SSL traffic. The vulnerability is due to the incorrect handling of TCP SSL packets received out of order. An attacker could exploit this vulnerability by sending a crafted SSL connection through the affected device. A successful exploit could allow the attacker to bypass a configured SSL AC policy to block SSL traffic. Cisco Bug IDs: CSCvg09316.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01163 67th 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 Threat Defense Software	Cisco Firepower Threat Defense Software	—	No fix listed	CNA

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

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.0.0:::::::*	6.0.0	Vulnerable	Cisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.1.0:::::::*	6.1.0	Vulnerable	Cisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.0:::::::*	6.2.0	Vulnerable	Cisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.2:::::::*	6.2.2	Vulnerable	Cisco

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.0.0:*:*:*:*:*:*:* Versions 6.0.0 Vulnerable ·Cisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.1.0:*:*:*:*:*:*:* Versions 6.1.0 Vulnerable ·Cisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.0:*:*:*:*:*:*:* Versions 6.2.0 Vulnerable ·Cisco
cpe:2.3:a:cisco:secure_firewall_threat_defense: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-2018-0297
2026-10-03 Alias added: GHSA-9j44-j9v3-4928

References

Advisory 1

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-firepwr-pb

TI-2025-14628 Buffer overflow in Cisco Secure Firewall Adaptive Security Appliance Software KEVCVSS 3.1CRITICAL 9.9
TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
TI-2023-06973 Authentication bypass in Cisco Adaptive Security Appliance Software KEVCVSS 3.1CRITICAL 9.1
TI-2026-82192 Denial of service in Cisco Secure Firewall ASA and FTD SSL VPN KEVCVSS 3.1HIGH 8.6
TI-2026-16533 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense… KEVCVSS 3.1HIGH 8.6
TI-2025-14657 Missing authorization in Cisco Secure Firewall Adaptive Security Appliance Software KEVCVSS 3.1HIGH 8.6

See all 276 →

Sources

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