Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2022-41800

Appliance mode iControl REST vulnerability

F5 / BIG-IP · 17.0.x

Watch CVE-2022-41800 Browse KEV feed
Severity
CVSS 8.7 · High
Confidence
High
Exploit status
Exploited in the wild
EPSS
76.9%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2022-41800 is Appliance mode iControl REST vulnerability affecting F5 BIG-IP. In all versions of BIG-IP, when running in Appliance mode, an authenticated user assigned the Administrator role may be able to bypass...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is high. Also confirmed by third-party sources.

Who is affected?

F5 / BIG-IP 17.0.x.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Appliance mode iControl REST vulnerability

In all versions of BIG-IP, when running in Appliance mode, an authenticated user assigned the Administrator role may be able to bypass Appliance mode restrictions, utilizing an undisclosed iControl REST endpoint. A successful exploit can allow the attacker to cross a security boundary.  

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

F5 Affected
BIG-IP
17.0.x 16.1.x 15.1.x 14.1.x 13.1.x
Published
07 Dec 2022
Exploitation Reported
07 Dec 2022
Attack vector
Remote
Complexity
Low
Privileges
High
User interaction
None

Tags

nuclei_scanner

CVE References

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

The Shadowserver

Recorded 07 Dec 2022

A trusted third party reported exploitation.

Proof of concept available

Nuclei Templates

Recorded 28 Apr 2025

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access
Source Added
The Shadowserver First 2022-12-07 03:12 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
0
0
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Metasploit https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/f5_icontrol_rpmspec_rce_cve_2022_41800.rb 28 Apr 2025
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2022/CVE-2022-41800.yaml 25 Apr 2025

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

8.7 High

Potential damage if exploited. Separate from whether attackers are using it.

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

EPSS

76.9%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Improper Neutralization of Special Elements used in a Command ('Command Injection') CWE-77

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

F5 BIG-IP Appliance Mode - Command Injection

nuclei · Created Unknown

f5_icontrol_rpmspec_rce_cve_2022_41800

metasploit · Created Unknown

Metasploit module for CVE-2022-41800

Timeline

From disclosure to observed exploitation

  1. 15:02 UTC

    Metasploit module available

    Exploit module available

  2. 15:02 UTC

    Public PoC available

    Public proof-of-concept code published

  3. 00:00 UTC

    Nuclei template available

    Scanner coverage available

  4. 03:12 UTC

    CVE published

    Vulnerability disclosed publicly

  5. 03:12 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  6. 17:33 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2022-41800

Sample API response 
{
  "cve_id": "CVE-2022-41800",
  "confidence": "High",
  "cvss_score": 8.7,
  "cvss_estimated": false,
  "epss_score": 0.76866,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}