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9.8 — CRITICAL

Critical Fortinet FortiSandbox Vulnerability Enables Code Execution Attacks

📅 12 May 2026 at 17:45 UTC📰 Cyber Security NewsView original source ↗

A critical security flaw in Fortinet’s FortiSandbox platform is putting enterprise networks at serious risk, allowing unauthenticated attackers to execute arbitrary code or commands remotely, with no credentials required. Fortinet disclosed the vulnerability on May 12, 2026, under the identifier CVE-2026-26083 (FG-IR-26-136), assigning it a CVSSv3 score of 9.1, placing it firmly in the critical […] The post Critical Fortinet FortiSandbox Vulnerability Enables Code Execution Attacks appeared first on Cyber Security News.

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

A critical Fortinet FortiSandbox vulnerability (CVE-2026-26083) allows unauthenticated attackers to execute arbitrary code or commands remotely, posing a significant risk to enterprise networks.

⚙️Technical Details
Affected Systems
Fortinet FortiSandbox platformFortinet FortiSandbox CloudFortiSandbox PaaSAttack Vectors: NETWORK
Attack Vectors
NETWORK
💥Impact Assessment
Severity: CRITICAL
Who Is at Risk
Enterprise networks using affected Fortinet FortiSandbox systems
🛡️Recommended Actions
1Immediately update to the latest patch version of Fortinet FortiSandbox
2Implement additional security controls, such as intrusion detection and prevention systems
3Monitor network activity for suspicious activity related to FortiSandbox
📦Affected Products
Fortinet FortiSandbox 5.0.0 through 5.0.1Fortinet FortiSandbox 4.4.0 through 4.4.8FortiSandbox Cloud 5.0.2 through 5.0.5FortiSandbox PaaS 23.3 all versionsFortiSandbox PaaS 23.1 all versionsFortiSandbox PaaS 22.2 all versions
🔐NVD Verified DataVERIFIED
CVE-2026-26083 ↗CVSS 9.8 — CRITICAL
Attack Vector
NETWORK
Complexity
LOW
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-862

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