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CVE-2020-5946

19
FAUCET Score

CVE-2020-5946 describes a Denial-of-Service (DoS) vulnerability affecting F5 BIG-IP Advanced WAF and FPS versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, and 14.1.0-14.1.2.7. Specifically, malformed client-side alerts sent to a BIG-IP virtual server configured with DataSafe can cause the Traffic Management Microkernel (TMM) to restart. This vulnerability is rated as HIGH severity with a CVSS score of 7.5, indicating it can be exploited remotely with low complexity and without user interaction to achieve a complete loss of availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 14.1.0, < 14.1.2.8CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
> 15.1.0, < 15.1.1CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
>= 16.0.0, < 16.0.1CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
>= 14.1.0, < 14.1.2.8CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
>= 15.1.0, < 15.1.1CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.03%
Probability of exploitation in next 30 days
EPSS Percentile
60.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0103 is in the 37th percentile among its peer group of 51,553 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, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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/K53821711
Vendor Advisory