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CVE-2023-23552

BIG-IP Advanced WAF and ASM vulnerability

HIGH
7.5
CVSS Score
Published: February 1, 2023 at 05:56 PM UTC
Updated: June 17, 2026 at 05:37 AM UTC
3 products affected across 1 vendorBig IP Application Security ManagerBig IP Advanced Web Application FirewallBIG-IP

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Severity
HIGH7.5
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

On versions 17.0.x before 17.0.0.2, 16.1.x before 16.1.3.3, 15.1.0 before 15.1.8, 14.1.x before 14.1.5.3, and all versions of 13.1.x, when a BIG-IP Advanced WAF or BIG-IP ASM security policy is configured on a virtual server, undisclosed requests can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected

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

Big IP Advanced Web Application Firewall· F5
95%
13.1.0 ≤ v ≤ 13.1.514.1.0 ≤ v < 14.1.5.315.1.0 ≤ v < 15.1.816.1.0 ≤ v < 16.1.3.317.0.0 ≤ v < 17.0.0.2
Affected range stops below 14.1.5.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.1.3.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.0.0.2, so it looks safe — our inference, not a vendor statement
Big IP Application Security Manager· F5
95%
13.1.0 ≤ v ≤ 13.1.514.1.0 ≤ v < 14.1.5.315.1.0 ≤ v < 15.1.816.1.0 ≤ v < 16.1.3.317.0.0 ≤ v < 17.0.0.2
Affected range stops below 14.1.5.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.1.3.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.0.0.2, so it looks safe — our inference, not a vendor statement
BIG-IP· F5
60%
v ≥ 13.1.014.1.0 ≤ v < 14.1.5.315.1.0 ≤ v < 15.1.816.1.0 ≤ v < 16.1.3.317.0.0 ≤ v < 17.0.0.213.1.014.1.015.1.016.1.017.0.0
Affected range stops below 14.1.5.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.1.3.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.0.0.2, 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)

Vendor Advisory
Source: [email protected]
https://my.f5.com/manage/s/article/K17542533

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHf5
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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