CVE-2023-36550

CRITICAL

A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiWLM version 8.6.0 through 8.6.5 and 8.5.0 through 8.5.4 allows attacker to execute unau...

Affects 1 product across 1 vendor.

BCS7.49
CVSS 3.19.8
EPSS2.1%
Percentile80th
PatchPatched
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-78: OS Command Injection

Attacker injects OS commands through application inputs passed to system() or equivalent calls, leading to arbitrary command execution.

Related Attack Patterns (CAPEC)
CAPEC-43 Exploiting Multiple Input Interpretation Layers
via CWE-78
CAPEC-108 Command Line Execution through SQL Injection
via CWE-78
CAPEC-6 Argument Injection
via CWE-78
CAPEC-15 Command Delimiters
via CWE-78
CAPEC-88 OS Command Injection
via CWE-78

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ SAGE Intelligence — CITED Relevance Research Team

A critical vulnerability in Fortinet FortiWLM versions 8.6.0 through 8.6.5 and 8.5.0 through 8.5.4 allows attackers to execute unauthorized OS commands via specially crafted HTTP GET request parameters due to improper neutralization of special elements used in an OS command.

BSID: BS-2023-GLOBAL-005068-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH

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Frequently Asked Questions
What is CVE-2023-36550?
A critical vulnerability in Fortinet FortiWLM versions 8.6.0 through 8.6.5 and 8.5.0 through 8.5.4 allows attackers to execute unauthorized OS commands via specially crafted HTTP GET request parameters due to improper neutralization of special elements used in an OS command.
What is the CVSS score for CVE-2023-36550?
CVE-2023-36550 has CVSS 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS: 2.1%.
Is CVE-2023-36550 actively exploited?
No confirmed active exploitation of CVE-2023-36550 as of 2026-05-30.
How do I remediate CVE-2023-36550?
Priority: IMMEDIATE. Advisory: https://fortiguard.com/psirt/FG-IR-23-140 PSIRT: [email protected]
What systems are affected by CVE-2023-36550?
CVE-2023-36550 affects: Fortinet.
Vulnerability Details
CVE IDCVE-2023-36550
BSIDBS-2023-GLOBAL-005068-C BreachSpider Global ID
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2023-10-10
Last Modified2024-11-21
ICS Relevance70%
Weakness (CWE)
OS Command Injection
Domains
NETWORK-INFRA
SourceNVD
Official Description

A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiWLM version 8.6.0 through 8.6.5 and 8.5.0 through 8.5.4 allows attacker to execute unauthorized code or commands via specifically crafted http get request parameters.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

The vulnerability is an OS command injection flaw. An attacker can exploit this by sending a maliciously crafted HTTP GET request with specific parameters to the affected FortiWLM server. This can lead to the execution of arbitrary commands with the privileges of the FortiWLM service.

Exploitation Likelihood: CRITICAL

Affected Products
VendorProductFixed Version
Fortinet Fortiwlm —
Remediation
View Vendor Advisory →

Remediation Priority: IMMEDIATE

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: July 2026 | Threat Age: 1019 Days
CISA KEVNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
SAGE Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
ConfidenceHIGH
Enriched At2026-05-24
SHA-512 Audit Hasha88fd5948d1a938398c82308ba83c29bf7b9aa51c37d4ca76ac5c618cad61ebd831efc1dc801af57ed1641888e3cd367e3a76a54ffb4748597dce417f221a4c4
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