vciy

CVE-2024-23976

INDEX BUILT · 2026-09-20

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BIG-IP Appliance mode iAppsLX vulnerability

CVE-2024-239764 of 4 sources documented this
25

rank 25 = 0 + 15 + 0 + 10 + 0

rank@v1 · scheduled

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.00167  ·  without this subject the record ranks 25

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 6.0, from NVD  ·  without this subject the record ranks 10

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 25

How much of the world it touches

NVD CPE configurations

20 products in the CPE ranges  ·  without this subject the record ranks 15

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 25

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$7,350over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$7,350 = $4.99M incident cost x 0.8814887365328109 exposure x 0.00167 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.00167EPSSNOT IN KEVas of 2026-09-20
Severity6 MEDIUMreceipt
Harmpartial impactreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementscoring model changedreceipt
PLATEAU10Minimal movement since 2024-02-15, 851 days at 0.00, as of 2026-06-15. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachneeds local access · high privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality and integrity lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-266 Incorrect Privilege Assignmentreceipt
Published consequencesCWE-266: Access Control: Gain Privileges or Assume Identity[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed in17.1.1; 16.1.4; 15.1.9receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA6 MEDIUMreceipt
CVSS, NVD6 MEDIUMreceipt
Exploit probability0.00167 · top 94% of all CVEsreceipt
Blast breadth8 products across 1 vendorderived
Assigned byf5receipt
Recorded changes12 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productF5 BIG-IPreceipt
Published rangesf5 big-ip access policy manager >= 15.1.0 < 15.1.9; f5 big-ip access policy manager >= 16.1.0 < 16.1.4; f5 big-ip access policy manager 17.1.0; f5 big-ip advanced firewall manager >= 15.1.0 < 15.1.9receipt
Show all 20 published ranges
f5 big-ip access policy manager >= 15.1.0 < 15.1.9
f5 big-ip access policy manager >= 16.1.0 < 16.1.4
f5 big-ip access policy manager 17.1.0
f5 big-ip advanced firewall manager >= 15.1.0 < 15.1.9
f5 big-ip advanced firewall manager >= 16.1.0 < 16.1.4
f5 big-ip advanced firewall manager 17.1.0
f5 big-ip analytics >= 15.1.0 < 15.1.9
f5 big-ip analytics >= 16.1.0 < 16.1.4
f5 big-ip analytics 17.1.0
f5 big-ip application acceleration manager >= 15.1.0 < 15.1.9
f5 big-ip application acceleration manager >= 16.1.0 < 16.1.4
f5 big-ip application acceleration manager 17.1.0
f5 big-ip application security manager >= 15.1.0 < 15.1.9
f5 big-ip application security manager >= 16.1.0 < 16.1.4
f5 big-ip application security manager 17.1.0
f5 big-ip domain name system >= 15.1.0 < 15.1.9
f5 big-ip domain name system >= 16.1.0 < 16.1.4
f5 big-ip domain name system 17.1.0
f5 big-ip fraud protection service >= 15.1.0 < 15.1.9
f5 big-iq centralized management >= 8.0.0 <= 8.3.0
Fixed in17.1.1; 16.1.4; 15.1.9receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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Attack path

Local accessrequires high privilegesF5 BIG-IPCWE-266 weaknessConfidentiality and integrity lossC:H / I:Hexploits CWE-266data compromise

What it is stated by the CNA

When running in Appliance mode, an authenticated attacker assigned the Administrator role may be able to bypass Appliance mode restrictions utilizing iAppsLX templates on a BIG-IP system.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated receipt

NVD's analysis a second authority

severity
6 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
weakness
CWE-266
affected versions
f5 big-ip access policy manager >= 15.1.0 < 15.1.9; f5 big-ip access policy manager >= 16.1.0 < 16.1.4; f5 big-ip access policy manager 17.1.0; and 17 more, listed in full below
also scored by
[email protected] 6 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

check it yourself my.f5.com receipt

Movement the material steps

15 Feb 20240.00043
17 Mar 20250.00069 · scoring model v2025.03.14
15 Jun 20260.00167 · scoring model v2026.06.15
Show all 12 observations
15 Feb 20240.00043
17 Mar 20250.00069
19 Mar 20250.00075
29 Mar 20250.00147
30 Mar 20250.00075
15 Apr 20259e-05
27 Apr 20250.00012
6 Sep 20250.00015
7 Sep 20250.00016
18 Nov 20250.00079
21 Nov 20250.00016
15 Jun 20260.00167

12 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.00167Published2024-02-14Index as of2026-06-15

The record had been public for 2 years, 4 months when this index was last written.

Published 2024-02-14 receipt · Index as of 2026-06-15 derived

Siblings and hubs

Records related to this one

Its defect family

f5 big-ip

Of the 2 records in this family, this is the only one holding a stated fix version: 17.1.1; 16.1.4; 15.1.9.

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

Browse the index from here

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What usually comes next

Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.

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