NVD / CVE Program· CNA f5

CVE-2023-22422: HTTP profile vulnerability

Noroxi assessment

Priority: Monitor (action score 30/100)

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: 0.62% (FIRST EPSS); higher than 50.2% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
Fixed version: F5 BIG-IP 16.1.3.3, 17.0.0.2.

Low priority for now. Upgrade to F5 BIG-IP 16.1.3.3, 17.0.0.2 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

On BIG-IP versions 17.0.x before 17.0.0.2 and 16.1.x before 16.1.3.3, when a HTTP profile with the non-default Enforcement options of Enforce HTTP Compliance and Unknown Methods: Reject are configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

HighCVSS 7.5 · v3.1—No exploit Fix available

BDU:2023-08429

Published: Feb 1, 2023
Updated: Jun 17, 2026
EPSS: 0.6% · 50th percentile
CWE: CWE-120

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 30 / 40 · 7.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.6%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 7.5
CNA · f5: 7.5; agree

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.

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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 advanced firewall manager	cpe:2.3:a:f5:big-ip_advanced_firewall_manager
f5	big-ip analytics	cpe:2.3:a:f5:big-ip_analytics
f5	big-ip application acceleration manager	cpe:2.3:a:f5:big-ip_application_acceleration_manager
f5	big-ip application security manager	cpe:2.3:a:f5:big-ip_application_security_manager
f5	big-ip ddos hybrid defender	cpe:2.3:a:f5:big-ip_ddos_hybrid_defender
f5	big-ip domain name system	cpe:2.3:a:f5:big-ip_domain_name_system
f5	big-ip fraud protection service	cpe:2.3:a:f5:big-ip_fraud_protection_service
f5	big-ip link controller	cpe:2.3:a:f5:big-ip_link_controller
f5	big-ip local traffic manager	cpe:2.3:a:f5:big-ip_local_traffic_manager
f5	big-ip policy enforcement manager	cpe:2.3:a:f5:big-ip_policy_enforcement_manager
f5	big-ip ssl orchestrator	cpe:2.3:a:f5:big-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 manager16.1.0 and later · before 16.1.3.3
f5 big-ip access policy manager17.0.0 and later · before 17.0.0.2
f5 big-ip advanced firewall manager16.1.0 and later · before 16.1.3.3
f5 big-ip advanced firewall manager17.0.0 and later · before 17.0.0.2
f5 big-ip analytics16.1.0 and later · before 16.1.3.3
f5 big-ip analytics17.0.0 and later · before 17.0.0.2
f5 big-ip application acceleration manager16.1.0 and later · before 16.1.3.3
f5 big-ip application acceleration manager17.0.0 and later · before 17.0.0.2
f5 big-ip application security manager16.1.0 and later · before 16.1.3.3
f5 big-ip application security manager17.0.0 and later · before 17.0.0.2
f5 big-ip ddos hybrid defender16.1.0 and later · before 16.1.3.3
f5 big-ip ddos hybrid defender17.0.0 and later · before 17.0.0.2
f5 big-ip domain name system16.1.0 and later · before 16.1.3.3
f5 big-ip domain name system17.0.0 and later · before 17.0.0.2
f5 big-ip fraud protection service16.1.0 and later · before 16.1.3.3
f5 big-ip fraud protection service17.0.0 and later · before 17.0.0.2
f5 big-ip link controller16.1.0 and later · before 16.1.3.3
f5 big-ip link controller17.0.0 and later · before 17.0.0.2
f5 big-ip local traffic manager16.1.0 and later · before 16.1.3.3
f5 big-ip local traffic manager17.0.0 and later · before 17.0.0.2

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 17.0.0.2affected · semver
- 16.1.0 and later · before 16.1.3.3affected · 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 InteKEV
99Now

Published before and after this one in the same product

← EarlierCVE-2023-22374Feb 1, 2023 · iControl SOAP vulnerability
55Plan
← EarlierCVE-2023-22418Feb 1, 2023 · BIG-IP APM virtual server vulnerability
24Monitor
Later →CVE-2023-22664Feb 1, 2023 · BIG-IP HTTP/2 profile 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	16.1.3.3	Vendor (CNA)
F5 BIG-IP	17.0.0.2	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.

No credits in the CNA record.

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.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: none
Availability: high · the service can be disrupted

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

Weakness class (CWE)

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS vector

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

nvd-primary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

The bug in code

The whole CWE-120 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1char buf[256];
2memcpy(buf, pkt->data, pkt->len);

Fixed

1char buf[256];
2if (pkt->len > sizeof(buf)) {
3  return -EINVAL;
4}
5memcpy(buf, pkt->data, pkt->len);

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)

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/K43881487

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

All records