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CVE-2023-22374· NVD / CVE Program· CNA f5

iControl SOAP vulnerability

A format string vulnerability exists in iControl SOAP that allows an authenticated attacker to crash the iControl SOAP CGI process or, potentially execute arbitrary code. In appliance mode BIG-IP, a successful exploit of this vulnerability can allow the attacker to cross a security boundary.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

HighCVSS 8.5 · v3.1—No exploit Fix available
Published
Feb 1, 2023
Updated
Jun 17, 2026
EPSS
72.6% · 99th percentile
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Report tools

JSON

Action score

56

Plan

Add it to your regular patch cycle.

CVSS
34 / 40 · 8.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
22 / 30 · 72.6%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · f5
7.5
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

VendorProduct
f5big-ip access policy manager
f5big-ip advanced firewall manager
f5big-ip analytics
f5big-ip application acceleration manager
f5big-ip application security manager
f5big-ip ddos hybrid defender
f5big-ip domain name system
f5big-ip fraud protection service
f5big-ip link controller
f5big-ip local traffic manager
f5big-ip policy enforcement manager
f5big-ip ssl orchestrator

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • f5 big-ip access policy manager14.1.4.6 and later · up to 14.1.5 inclusive
  • f5 big-ip access policy manager15.1.5.1 and later · up to 15.1.8 inclusive
  • f5 big-ip access policy manager16.1.2.2 and later · up to 16.1.3 inclusive
  • f5 big-ip access policy manager13.1.5
  • f5 big-ip access policy manager17.0.0
  • f5 big-ip advanced firewall manager14.1.4.6 and later · up to 14.1.5 inclusive
  • f5 big-ip advanced firewall manager15.1.5.1 and later · up to 15.1.8 inclusive
  • f5 big-ip advanced firewall manager16.1.2.2 and later · up to 16.1.3 inclusive
  • f5 big-ip advanced firewall manager13.1.5
  • f5 big-ip advanced firewall manager17.0.0
  • f5 big-ip analytics14.1.4.6 and later · up to 14.1.5 inclusive
  • f5 big-ip analytics15.1.5.1 and later · up to 15.1.8 inclusive
  • f5 big-ip analytics16.1.2.2 and later · up to 16.1.3 inclusive
  • f5 big-ip analytics13.1.5
  • f5 big-ip analytics17.0.0
  • f5 big-ip application acceleration manager15.1.5.1 and later · up to 15.1.8 inclusive
  • f5 big-ip application acceleration manager16.1.2.2 and later · up to 16.1.3 inclusive
  • f5 big-ip application acceleration manager13.1.5
  • f5 big-ip application acceleration manager17.0.0
  • f5 big-ip application security manager14.1.4.6 and later · up to 14.1.5 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (f5). Independent of NVD's CPE analysis and usually ahead of it.

  • F5 BIG-IP

    • 17.0.0 and later · before 17.1.0affected · semverfixed in Engineering Hotfix Available
    • 16.1.2.2 and later · before 16.1.3.4affected · semverfixed in Engineering Hotfix Available
    • 15.1.5.1 and later · before 15.1.8.2affected · semverfixed in Engineering Hotfix Available
    • 14.1.4.6 and later · before 14.1.5.4affected · semverfixed in Engineering Hotfix Available
    • 13.1.5 and lateraffected · semverfixed in Engineering Hotfix Available

Same product

f5: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-1388On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior KEV
    99Now
  • CVE-2021-22986On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, and 12.1.x before 12.1.5.3 KEV
    99Now
  • CVE-2020-5902In BIG-IP versions 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, the Traffic Management User InteKEV
    99Now
  • CVE-2023-46747BIG-IP Configuration utility unauthenticated remote code execution vulnerabilityKEV
    98Now
  • CVE-2021-22991On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, and 12.1.x before 12.1.5.3,KEV
    87Now
  • CVE-2026-94127BIG-IP APM OAuth vulnerabilityKEV
    68This week

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
F5 BIG-IP14.1.5.4Vendor (CNA)
F5 BIG-IP15.1.8.2Vendor (CNA)
F5 BIG-IP16.1.3.4Vendor (CNA)
F5 BIG-IP17.1.0Vendor (CNA)
F5 BIG-IPEngineering Hotfix AvailableVendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

  • F5 acknowledges Ron BowesRapid7 for bringing this issue to our attention and following the highest standards of coordinated disclosure.finder

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-134 · Use of Externally-Controlled Format String

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records