CVE-2020-5926
HIGH
7.5
CVSS Score
Published: August 26, 2020 at 03:43 PM UTC
Updated: June 17, 2026 at 03:22 AM UTC
12 products affected across 1 vendorBig IP Access Policy ManagerBig IP Application Security ManagerBig IP Advanced Firewall Manager
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Severity
HIGH7.5
Exploit prediction
EPSS 1%
Description
In BIG-IP versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, and 14.1.0-14.1.2.6, a BIG-IP virtual server with a Session Initiation Protocol (SIP) ALG profile, parsing SIP messages that contain a multi-part MIME payload with certain boundary strings can cause TMM to free memory to the wrong cache.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
14.1.0 ≤ v < 14.1.2.715.0.0 ≤ v < 15.0.1.415.1.0 ≤ v < 15.1.0.5
Affected range stops below 14.1.2.7, 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
14.1.0 ≤ v < 14.1.2.715.0.0 ≤ v < 15.0.1.415.1.0 ≤ v < 15.1.0.5
Affected range stops below 14.1.2.7, 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
14.1.0 ≤ v < 14.1.2.715.0.0 ≤ v < 15.0.1.415.1.0 ≤ v < 15.1.0.5
Affected range stops below 14.1.2.7, 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
14.1.0 ≤ v < 14.1.2.715.0.0 ≤ v < 15.0.1.415.1.0 ≤ v < 15.1.0.5
Affected range stops below 14.1.2.7, 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
14.1.0 ≤ v < 14.1.2.715.0.0 ≤ v < 15.0.1.415.1.0 ≤ v < 15.1.0.5
Affected range stops below 14.1.2.7, 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
14.1.0 ≤ v < 14.1.2.715.0.0 ≤ v < 15.0.1.415.1.0 ≤ v < 15.1.0.5
Affected range stops below 14.1.2.7, 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
14.1.0 ≤ v < 14.1.2.715.0.0 ≤ v < 15.0.1.415.1.0 ≤ v < 15.1.0.5
Affected range stops below 14.1.2.7, 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
14.1.0 ≤ v < 14.1.2.715.0.0 ≤ v < 15.0.1.415.1.0 ≤ v < 15.1.0.5
Affected range stops below 14.1.2.7, 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
14.1.0 ≤ v < 14.1.2.715.0.0 ≤ v < 15.0.1.415.1.0 ≤ v < 15.1.0.5
Affected range stops below 14.1.2.7, 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
14.1.0 ≤ v < 14.1.2.715.0.0 ≤ v < 15.0.1.415.1.0 ≤ v < 15.1.0.5
Affected range stops below 14.1.2.7, 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
Remediation
No guide yetNo 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/K42830212CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-404
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