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No exploitation reportedFix available

CVE-2023-23552

No exploitation reported by the sources we read.

  • Published2023-02-01
  • Fixed in17.0.0.2 · 16.1.3.3 · 15.1.8 · 14.1.5.3
  • WeaknessCWE-400

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2023-02-0118:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-23552?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-23552?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
F5 big-ip advanced web application firewall
BranchAffectedFixed in
17.0≥ 17.0.0, < 17.0.0.217.0.0.2
16.1≥ 16.1.0, < 16.1.3.316.1.3.3
15.1≥ 15.1.0, < 15.1.815.1.8
14.1≥ 14.1.0, < 14.1.5.314.1.5.3
13.1≥ 13.1.0, ≤ 13.1.5no fix published
F5 big-ip application security manager
BranchAffectedFixed in
17.0≥ 17.0.0, < 17.0.0.217.0.0.2
16.1≥ 16.1.0, < 16.1.3.316.1.3.3
15.1≥ 15.1.0, < 15.1.815.1.8
14.1≥ 14.1.0, < 14.1.5.314.1.5.3
13.1≥ 13.1.0, ≤ 13.1.5no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update F5 big-ip advanced web application firewall to 17.0.0.2 · 16.1.3.3 · 15.1.8 · 14.1.5.3

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2025-03-25
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.17.5read 2026-10-23
  • NVDCVSS 3.17.5read 2026-10-23
  • CNAweakness (CWE)CWE-400read 2026-10-23
  • NVDweakness (CWE)CWE-400read 2026-10-23
  • FIRST EPSSEPSS score1.5 %2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2023-02-01
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2023-23552?

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.

Is CVE-2023-23552 actively exploited?

Active exploitation of CVE-2023-23552 has not been confirmed. Its EPSS score was 1.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-23552?

CVE-2023-23552 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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