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CVE-2020-27724

MEDIUM
6.5
CVSS Score
Published: December 24, 2020 at 03:00 PM UTC
Updated: June 17, 2026 at 03:09 AM UTC
1 product affected across 1 vendorBig IP Access Policy Manager

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.9%

Description

In BIG-IP APM versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, on systems running more than one TMM instance, authenticated VPN users may consume excessive resources by sending specially-crafted malicious traffic over the tunnel.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Big IP Access Policy Manager· F5
95%
11.6.1 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.1.0 ≤ v < 13.1.3.514.1.0 ≤ v < 14.1.3.115.0.0 ≤ v < 15.0.1.415.1.0 ≤ v < 15.1.0.516.0.0 ≤ v < 16.0.111.6.1-11.6.5.212.1.0-12.1.5.213.1.0-13.1.3.414.1.0-14.1.315.0.0-15.0.1.315.1.0-15.1.0.416.0.0-16.0.0.1
Affected range stops below 13.1.3.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.0.1.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.0.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.f5.com/csp/article/K04518313

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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