CVE-2021-32589Network attack vector

Root code execution via crafted FGFM request

Published Dec 19, 2024 · Updated Dec 20, 2024

Use-after-free in Fortinet FortiManager and FortiAnalyzer allows remote attackers to execute code as root through crafted FGFM requests. The fgfmsd daemon reuses freed memory while processing a specially crafted request received on the FGFM port. No authentication or user interaction is required; successful exploitation grants root-level control of the management appliance.

CVSS severity8.1
High
EPSS probability8.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Fortinet FortiManager and FortiAnalyzer allows remote attackers to execute code as root through crafted FGFM requests. The fgfmsd daemon reuses freed memory while processing a specially crafted request received on the FGFM port. No authentication or user interaction is required; successful exploitation grants root-level control of the management appliance.

The record

CVE
CVE-2021-32589
Published
Dec 19, 2024
Updated
Dec 20, 2024
Vendor
Fortinet
Product
FortiManager
Classifications
CWE-416, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 20, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.0.0 <=5.0.12
  2. Affected versionversion=5.2.0 <=5.2.10
  3. Affected versionversion=5.4.0 <=5.4.7
  4. Affected versionversion=5.6.0 <=5.6.10
  5. Affected versionversion=6.0.0 <=6.0.10
  6. Affected versionversion=6.2.0 <=6.2.7
  7. Affected versionversion=6.4.0 <=6.4.5
  8. Affected versionversion=7.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fortinet · FortiManagerversion=5.0.0 <=5.0.12; version=5.2.0 <=5.2.10; version=5.4.0 <=5.4.7; version=5.6.0 <=5.6.10; version=6.0.0 <=6.0.10; version=6.2.0 <=6.2.7; version=6.4.0 <=6.4.5; version=7.0.0
Fortinet · FortiAnalyzerversion=5.2.4 <=5.2.10; version=5.3.11; version=5.4.0 <=5.4.7; version=5.6.0 <=5.6.10; version=6.0.0 <=6.0.10; version=6.2.0 <=6.2.7; version=6.4.0 <=6.4.5; version=7.0.0

Published CVSS scores

8.1Fortinet, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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