CVE-2019-1978

MEDIUM

Cisco Firepower Services Software For Asa - Improper Input Validation

Title source: rule
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-1978. PoCs published by TrustedSec.

AI-analyzed exploit summary This exploit leverages a directory traversal vulnerability (CVE-2019-19781) in Citrix ADC (NetScaler) to write a malicious XML template to disk, which is then executed to achieve remote code execution via a reverse shell.

Description

A vulnerability in the stream reassembly 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 reassembly of traffic streams. An attacker could exploit this vulnerability by sending crafted streams through an affected device. An exploit could allow the attacker to bypass filtering and deliver malicious requests to protected systems that would otherwise be blocked.

Exploits (1)

exploitdb WORKING POC
by TrustedSec · pythonwebappsmultiple
https://www.exploit-db.com/exploits/47902

This exploit leverages a directory traversal vulnerability (CVE-2019-19781) in Citrix ADC (NetScaler) to write a malicious XML template to disk, which is then executed to achieve remote code execution via a reverse shell.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Citrix ADC (NetScaler) versions affected by CVE-2019-19781
No auth needed
Prerequisites: Vulnerable Citrix ADC (NetScaler) instance · Network access to the target · Listener set up on attacker's machine
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 5.8
EPSS 0.0938
EPSS Percentile 94.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-20 CWE-264
Status published
Products (5)
cisco/firepower_services_software_for_asa
cisco/firepower_threat_defense
cisco/secure_firewall_management_center 2.9.15
cisco/secure_firewall_management_center 2.9.16
cisco/secure_firewall_management_center 2.9.12 - 2.9.12.15
Published Nov 05, 2019
Tracked Since Feb 18, 2026