CVE-2020-5938
MEDIUM
6.5
CVSS Score
Published: October 29, 2020 at 01:29 PM UTC
Updated: June 17, 2026 at 03:22 AM UTC
15 products affected across 1 vendorBig IP Access Policy ManagerBig IP Application Security ManagerBig IP Advanced Firewall Manager
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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.5%
Description
On BIG-IP 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, when negotiating IPSec tunnels with configured, authenticated peers, the peer may negotiate a different key length than the BIG-IP configuration would otherwise allow.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
11.6.1 ≤ v ≤ 11.6.5.212.1.0 ≤ v ≤ 12.1.5.213.1.0 ≤ v ≤ 13.1.3.4
11.6.1 ≤ v ≤ 11.6.5.212.1.0 ≤ v ≤ 12.1.5.213.1.0 ≤ v ≤ 13.1.3.4
11.6.1 ≤ v ≤ 11.6.5.212.1.0 ≤ v ≤ 12.1.5.213.1.0 ≤ v ≤ 13.1.3.4
11.6.1 ≤ v ≤ 11.6.5.212.1.0 ≤ v ≤ 12.1.5.213.1.0 ≤ v ≤ 13.1.3.4
11.6.1 ≤ v ≤ 11.6.5.212.1.0 ≤ v ≤ 12.1.5.213.1.0 ≤ v ≤ 13.1.3.4
11.6.1 ≤ v ≤ 11.6.5.212.1.0 ≤ v ≤ 12.1.5.213.1.0 ≤ v ≤ 13.1.3.4
11.6.1 ≤ v ≤ 11.6.5.212.1.0 ≤ v ≤ 12.1.5.213.1.0 ≤ v ≤ 13.1.3.4
11.6.1 ≤ v ≤ 11.6.5.212.1.0 ≤ v ≤ 12.1.5.213.1.0 ≤ v ≤ 13.1.3.4
11.6.1 ≤ v ≤ 11.6.5.212.1.0 ≤ v ≤ 12.1.5.213.1.0 ≤ v ≤ 13.1.3.4
11.6.1 ≤ v ≤ 11.6.5.212.1.0 ≤ v ≤ 12.1.5.213.1.0 ≤ v ≤ 13.1.3.4
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/K76610106CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-326
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