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TI-2019-01601 Aliases CVE-2019-1982GHSA-fjww-f977-qh4x

Cisco Firepower Threat Defense Software HTTP Filtering Bypass Vulnerability

Priority LOW 32CWE-264Published · Updated

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 3.1 · NVD. Fix status from CNA. Impact type from CWE-264.

Summary

A vulnerability in the HTTP traffic filtering component of Cisco Firepower Threat Defense Software, Cisco FirePOWER Services Software for ASA, and Cisco Firepower Management Center Software could allow an unauthenticated, remote attacker to bypass filtering protections. The vulnerability is due to improper handling of HTTP requests, including those communicated over a secure HTTPS connection, that contain maliciously crafted headers. An attacker could exploit this vulnerability by sending malicious requests to an affected device. An exploit could allow the attacker to bypass filtering and deliver malicious requests to protected systems, allowing attackers to deliver malicious content that would otherwise be blocked.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00975 62nd 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

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Firepower Management Centerall versions—No fix listedCNA
  • Cisco Firepower Management Center VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:cisco:firepower_services_software_for_asa:-:*:*:*:*:*:*:*not specified by NVDVulnerableCisco
cpe:2.3:a:cisco:secure_firewall_management_center:2.9.13:*:*:*:*:*:*:*2.9.13VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_management_center:2.9.14.0:*:*:*:*:*:*:*2.9.14.0VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_management_center:3.0.0:*:*:*:*:*:*:*3.0.0VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:-:*:*:*:*:*:*:*not specified by NVDVulnerableCisco
  • cpe:2.3:a:cisco:firepower_services_software_for_asa:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_management_center:2.9.13:*:*:*:*:*:*:* Versions 2.9.13 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_management_center:2.9.14.0:*:*:*:*:*:*:* Versions 2.9.14.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_management_center:3.0.0:*:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-1982
  2. 2026-10-03 Alias added: GHSA-fjww-f977-qh4x

References

Advisory 1

  • TI-2019-01598 Cisco Firepower Threat Defense Software Stream Reassembly Bypass Vulnerability CVSS 3.1MEDIUM 5.8
  • TI-2022-05477 Improper access control in Cisco Firepower Management Center CVSS 3.1HIGH 7.5
  • TI-2022-05486 Buffer overflow in Cisco Adaptive Security Appliance Software CVSS 3.1HIGH 7.7
  • TI-2019-01600 Cisco Firepower Threat Defense Software NULL Character Obfuscation Detection Bypass Vulnerability CVSS 3.1MEDIUM 5.8
  • TI-2019-01599 Cisco Firepower Threat Defense Software Nonstandard Protocol Detection Bypass Vulnerability CVSS 3.1MEDIUM 5.3

Sources

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