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-2018-5531

23
FAUCET Score

CVE-2018-5531 describes a denial-of-service vulnerability affecting F5 BIG-IP versions 13.0.0-13.1.0.7, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, and 11.2.1-11.5.6. An adjacent network attacker can exploit this flaw to disrupt VCMP guest and host systems. Rated High with a CVSS score of 7.4, this vulnerability requires an attacker to be on the same layer 2 network, indicating a low attack complexity but a high impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 11.2.1, <= 11.5.6CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
>= 11.6.0, <= 11.6.3.1CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
>= 12.1.0, <= 12.1.3.5CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
>= 13.0.0, <= 13.1.0.7CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
>= 11.2.1, <= 11.5.6CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.4HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 39th percentile among its peer group of 1,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

support.f5.com / csp/article/K64721111
MitigationVendor Advisory