VulnTideExploited vulnerabilities, by vendor. Data as of .
Known exploitedIn CISA's KEV catalog since Ransomware use: known
F5 BIG-IP Configuration Utility

CVE-2023-46747: F5 BIG-IP Configuration Utility Authentication Bypass Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on , 5 days after the CVE record was published.

How likely is exploitation in the next 30 days?
96.8%

EPSS score, percentile 99.9 of all scored records

How severe?
9.8 Critical

CVSS v3.1 base score, given by the CNA

What should I do?

CISA deadline . Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Advisories and patches (1)

Which versions are affected?

Affected

  • 17.1.0
  • 16.1.0
  • 15.1.0
  • 14.1.0
  • 13.1.0

Unaffected from Hotfix-BIGIP-17.1.0.3.0.75.4-ENG.iso; from Hotfix-BIGIP-17.1.1.0.2.6-ENG.iso; from Hotfix-BIGIP-16.1.4.1.0.50.5-ENG.iso; from Hotfix-BIGIP-15.1.10.2.0.44.2-ENG.iso; from Hotfix-BIGIP-14.1.5.6.0.10.6-ENG.iso; from Hotfix-BIGIP-13.1.5.1.0.20.2-ENG.iso

Versions by product

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.

What to do

Required action, set by CISA

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CISA due date for this action: .

Advisories and patches

Linked from CISA's catalog entry

Affected products and versions

As listed in the CVE record.

F5 BIG-IP
StatusVersions
Affected17.1.0
Unaffectedfrom Hotfix-BIGIP-17.1.0.3.0.75.4-ENG.iso
Unaffectedfrom Hotfix-BIGIP-17.1.1.0.2.6-ENG.iso
Affected16.1.0
Unaffectedfrom Hotfix-BIGIP-16.1.4.1.0.50.5-ENG.iso
Affected15.1.0
Unaffectedfrom Hotfix-BIGIP-15.1.10.2.0.44.2-ENG.iso
Affected14.1.0
Unaffectedfrom Hotfix-BIGIP-14.1.5.6.0.10.6-ENG.iso
Affected13.1.0
Unaffectedfrom Hotfix-BIGIP-13.1.5.1.0.20.2-ENG.iso

Versions not listed are: unknown.

Versions the record lists as unaffected: Hotfix-BIGIP-17.1.0.3.0.75.4-ENG.iso, Hotfix-BIGIP-17.1.1.0.2.6-ENG.iso, Hotfix-BIGIP-16.1.4.1.0.50.5-ENG.iso, Hotfix-BIGIP-15.1.10.2.0.44.2-ENG.iso, Hotfix-BIGIP-14.1.5.6.0.10.6-ENG.iso, Hotfix-BIGIP-13.1.5.1.0.20.2-ENG.iso.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.

About this vulnerability

F5 BIG-IP Configuration utility contains an authentication bypass using an alternate path or channel vulnerability due to undisclosed requests that may allow an unauthenticated attacker with network access to the BIG-IP system through the management port and/or self IP addresses to execute system commands. This vulnerability can be used in conjunction with CVE-2023-46748.

Summary: CISA's KEV catalog, as of .

  • CISA added CVE-2023-46747 to its Known Exploited Vulnerabilities (KEV) catalog on 31 Oct 2023.
  • CISA marks it as known to be used in ransomware campaigns.
  • The due date CISA sets for the required action is 21 Nov 2023.
  • The CVE record was published on 26 Oct 2023, 5 days before it was added to KEV.
  • The CVE record carries a CVSS v3.1 base score of 9.8 (Critical), given by its CNA.
  • FIRST's EPSS model puts the probability of exploitation in the next 30 days at 96.8% (percentile 99.9), as of 28 Oct 2026.
  • CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact total.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of . About the data.

Description

BIG-IP Configuration utility unauthenticated remote code execution vulnerability

Undisclosed requests may bypass configuration utility authentication, allowing an attacker with network access to the BIG-IP system through the management port and/or self IP addresses to execute arbitrary system commands.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.

Weakness

  • CWE-288: Authentication Bypass Using an Alternate Path or Channel

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.

Timeline

DateEvent
CVE record published
Added to CISA KEV
CISA due date for the required action
CVE record last updated

References

More exploited F5 vulnerabilities

  • CVE-2026-94127: F5 BIG-IP APM Heap-based Buffer Overflow Vulnerability (added )
  • CVE-2025-53521: F5 BIG-IP Stack-Based Buffer Overflow Vulnerability (added )
  • CVE-2023-46748: F5 BIG-IP Configuration Utility SQL Injection Vulnerability (added )
  • CVE-2022-1388: F5 BIG-IP Missing Authentication Vulnerability (added )
  • CVE-2021-22991: F5 BIG-IP Traffic Management Microkernel Buffer Overflow (added )
  • CVE-2020-5902: F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution Vulnerability (added )