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CVE-2019-1978

29
FAUCET Score

CVE-2019-1978 describes a medium-severity vulnerability in the stream reassembly component of Cisco Firepower Threat Defense Software, FirePOWER Services Software for ASA, and Firepower Management Center Software. An unauthenticated, remote attacker can exploit this flaw by sending crafted traffic streams, bypassing filtering protections and delivering malicious requests to protected systems. The vulnerability has a CVSS score of 5.8 (MEDIUM) and a FAUCET Risk Score of 97/100, indicating a significant risk despite its medium CVSS. While not listed on the KEV catalog and lacking public Metasploit or Nuclei exploits, it has garnered substantial community discussion and media coverage, though the provided articles seem to be about ransomware and not directly related to this specific CVE.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:cisco:firepower_services_software_for_asa:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
>= 2.9.12, <= 2.9.12.15CPE matchmatch criteria
cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:*
>= 2.9.13, <= 2.9.13.6CPE matchmatch criteria
cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:*
>= 2.9.14.0, <= 2.9.14.5CPE matchmatch criteria
cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.8MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
9.38%
Probability of exploitation in next 30 days
EPSS Percentile
94.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-47902 · Jan 11, 2020
This CVE's current EPSS score of 0.0938 is in the 94th percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-srb
Vendor Advisory