Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2020-3188

16
FAUCET Score

CVE-2020-3188 is a denial-of-service (DoS) vulnerability in Cisco Firepower Threat Defense (FTD) Software, affecting its management connections. The flaw stems from an excessively long default session timeout for remote management, allowing unauthenticated attackers to flood the device with crafted connections. This can lead to the remote management interface or Cisco Firepower Device Manager (FDM) becoming unresponsive, though user traffic remains unaffected. Rated 5.3 MEDIUM on CVSS, the attack requires no privileges or user interaction, but its impact is limited to management functions. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.4.0, < 6.4.0.9CPE matchmatch criteria
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
>= 6.5.0, < 6.5.0.5CPE matchmatch criteria
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
9.8\(3\)CPE matchmatch criteria
cpe:2.3:o:cisco:asa_5505_firmware:9.8\(3\):*:*:*:*:*:*:*
101.6\(1.96\)CPE matchmatch criteria
cpe:2.3:o:cisco:asa_5505_firmware:101.6\(1.96\):*:*:*:*:*:*:*
9.8\(3\)CPE matchmatch criteria
cpe:2.3:o:cisco:asa_5510_firmware:9.8\(3\):*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

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

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

Exploit Intelligence

EPSS Score
1.68%
Probability of exploitation in next 30 days
EPSS Percentile
74.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0168 is in the 59th percentile among its peer group of 23,725 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

No media coverage found for this CVE.

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-ftd-mgmt-interface-dos-FkG4MuTU
Vendor Advisory