An insufficient verification of data authenticity vulnerability [CWE-345] in FortiClient, FortiMail and FortiOS AV engines version 6.2.168 and below and version 6.4.274 and below may allow an attacker to bypass the AV engine via manipulating MIME attachment with junk and pad characters in base64.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 4.7, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts limited integrity, for affected systems. Impacting 3 products from fortinet, from fortinet, from fortinet organizations running these solutions should prioritize assessment and patching.
Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2022-11-02T12:15:52.747
2024-11-21T06:53:28.560
Modified
CVSSv3.1: 4.7 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | fortinet | antivirus_engine | 0.4.23 | Yes |
| Application | fortinet | antivirus_engine | 2.0.49 | Yes |
| Application | fortinet | antivirus_engine | 2.0.60 | Yes |
| Application | fortinet | antivirus_engine | 4.4.54 | Yes |
| Application | fortinet | antivirus_engine | 6.33 | Yes |
| Application | fortinet | antivirus_engine | 6.137 | Yes |
| Application | fortinet | antivirus_engine | 6.142 | Yes |
| Application | fortinet | antivirus_engine | 6.144 | Yes |
| Application | fortinet | antivirus_engine | 6.145 | Yes |
| Application | fortinet | antivirus_engine | 6.156 | Yes |
| Application | fortinet | antivirus_engine | 6.157 | Yes |
| Application | fortinet | antivirus_engine | 6.243 | Yes |
| Application | fortinet | antivirus_engine | 6.252 | Yes |
| Application | fortinet | antivirus_engine | 6.253 | Yes |
| Application | fortinet | fortimail | ≤ 6.0.12 | Yes |
| Application | fortinet | fortimail | ≤ 6.2.9 | Yes |
| Application | fortinet | fortimail | ≤ 6.4.6 | Yes |
| Application | fortinet | fortimail | ≤ 7.0.2 | Yes |
| Application | fortinet | fortimail | 4.1.0 | Yes |
| Operating System | fortinet | fortios | ≤ 6.0.15 | Yes |
| Operating System | fortinet | fortios | ≤ 6.2.11 | Yes |
| Operating System | fortinet | fortios | ≤ 6.4.10 | Yes |
| Operating System | fortinet | fortios | ≤ 7.0.6 | Yes |
| Operating System | fortinet | fortios | 7.2.0 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For fortinet's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.