CVE-2021-43072: Fortinet Fortianalyzer

Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days.

A buffer copy without checking size of input ('classic buffer overflow') in Fortinet FortiAnalyzer version 7.0.2 and below, version 6.4.7 and below, version 6.2.9 and below, version 6.0.11 and below, version 5.6.11 and below, FortiManager version 7.0.2 and below, version 6.4.7 and below, version 6.2.9 and below, version 6.0.11 and below, version 5.6.11 and below, FortiOS version 7.0.0 through 7.0.4, 6.4.0 through 6.4.8, 6.2.0 through 6.2.10, 6.0.x and FortiProxy version 7.0.0 through 7.0.3, 2.0.0 through 2.0.8, 1.2.x, 1.1.x and 1.0.x allows attacker to execute unauthorized code or commands via crafted CLI `execute restore image` and `execute certificate remote` operations with the tFTP protocol.

Affected products

• Fortinet Fortianalyzer: from 5.6.0, before 6.4.8 (fixed in 6.4.8); from 7.0.0, before 7.0.3 (fixed in 7.0.3)
• Fortinet FortiManager: from 5.6.0, before 6.4.8 (fixed in 6.4.8); from 7.0.0, before 7.0.3 (fixed in 7.0.3)
• Fortinet FortiOS: from 6.0.0, before 6.2.11 (fixed in 6.2.11); from 6.4.0, before 6.4.9 (fixed in 6.4.9); from 7.0.0, before 7.0.6 (fixed in 7.0.6)
• Fortinet FortiProxy: from 1.0.0, before 2.0.9 (fixed in 2.0.9); from 7.0.0, before 7.0.4 (fixed in 7.0.4)

Published 2023-07-18. Last modified 2026-06-17.