NVD / CVE Program· CNA f5

CVE-2023-39447: BIG-IP APM Guided Configuration vulnerability

Noroxi assessment

Priority: Monitor (action score 17/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.18% (FIRST EPSS).
Someone with local access to the system can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
Fixed version: F5 BIG-IP 15.1.8, 16.1.4, 9.0.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to F5 BIG-IP 15.1.8, 16.1.4, 9.0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

When BIG-IP APM Guided Configurations are configured, undisclosed sensitive information may be logged in restnoded log. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

MediumCVSS 4.4 · v3.1—No exploit Fix available

Info leak

Published: Oct 10, 2023
Updated: Jun 17, 2026
EPSS: 0.1% · 8th percentile
CWE: CWE-532

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 17 / 40 · 4.4 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.1%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · f5: 4.4; NVD has not scored this yet; the score shown is the CNA’s.

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

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
f5	big-ip access policy manager	cpe:2.3:a:f5:big-ip_access_policy_manager
f5	big-ip guided configuration	cpe:2.3:a:f5:big-ip_guided_configuration

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 manager15.1.0 and later · before 15.1.8
f5 big-ip access policy manager16.1.0 and later · before 16.1.4
f5 big-ip access policy manager17.0.0
f5 big-ip guided configuration7.0 and later · up to 7.7 inclusive
f5 big-ip guided configuration6.0
f5 big-ip guided configuration8.0

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
- 17.1.0 and laternot affected · semver
- 16.1.0 and later · before 16.1.4affected · semver
- 15.1.0 and later · before 15.1.8affected · semver
- 14.1.0 and laternot affected · semver
- 13.1.0 and laternot affected · semver
- 6.0 and later · before 9.0affected · semver

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…KEV
99Now

Published before and after this one in the same product

← EarlierCVE-2023-43124Sep 27, 2023 · BIG-IP APM Clients TunnelCrack vulnerability
28Monitor
← EarlierCVE-2023-43125Sep 27, 2023 · BIG-IP APM Clients TunnelCrack vulnerability
32Monitor
Later →CVE-2023-40534Oct 10, 2023 · BIG-IP HTTP/2 vulnerability
30Monitor

Remediation

Which version to upgrade to

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

Product / package	Fixed version	Source
F5 BIG-IP	15.1.8	Vendor (CNA)
F5 BIG-IP	16.1.4	Vendor (CNA)
F5 BIG-IP	9.0	Vendor (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.

No history yet (it accumulates with the daily EPSS job).

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.

F5finder

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-23-0577 · Oct 11, 2023(F5 Güvenlik Zafiyeti)

All national notices →

Technical details

Attack conditions

Someone with local access to the system can trigger it.
Administrator privileges are required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: none
Availability: none

Attack vector: Local
Attack complexity: Low
Privileges required: High
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: None
Availability impact: None

Weakness class (CWE)

CWE-532 · Insertion of Sensitive Information into Log File

CVSS vector

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

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.

Attack patterns (CAPEC)

Fuzzing for application mappingCAPEC-215likelihood: High · Low

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:10 PM UTC

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

References

my.f5.com/manage/s/article/K47756555

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

All records