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.
Conclusion & alert: CVE-2019-1982 is rated Low Risk (38.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.29%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-03-19 | 0.25% | 0.29% | +0.04% |
| 2 | 2025-03-17 | 0.13% | 0.25% | +0.12% |
| 3 | 2023-03-07 | — | 0.13% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 5.8 | 3.0 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cisco | firepower_services_software_for_asa | — | cpe:2.3:a:cisco:firepower_services_software_for_asa:-:*:*:*:*:*:*:* |
| cisco | firepower_threat_defense | — | cpe:2.3:a:cisco:firepower_threat_defense:-:*:*:*:*:*:*:* |
| cisco | secure_firewall_management_center | 2.9.13 | cpe:2.3:a:cisco:secure_firewall_management_center:2.9.13:*:*:*:*:*:*:* |
| cisco | secure_firewall_management_center | 2.9.14.0 | cpe:2.3:a:cisco:secure_firewall_management_center:2.9.14.0:*:*:*:*:*:*:* |
| cisco | secure_firewall_management_center | 3.0.0 | cpe:2.3:a:cisco:secure_firewall_management_center:3.0.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-http | Vendor Advisory |