CVE-2021-43072: fortinet fortianalyzer Classic Buffer Overflow
Vulnerability summary
CVE-2021-43072 is a medium (CVSS 6.7) Classic Buffer Overflow vulnerability in fortinet fortianalyzer. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7% of scored vulnerabilities.
Timeline
- 18-07-2023PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 2 sources · 1 version- CVE.orgCNA6.3MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:CDiffers
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
0.00 pp
From 0.18% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Fortinet4 products
- fortianalyzer≥ 7.0.0, ≤ 7.0.2 | ≥ 6.4.0, ≤ 6.4.7 | ≥ 6.2.0, ≤ 6.2.12 | ≥ 6.0.0, ≤ 6.0.12 | ≥ 5.6.0, ≤ 5.6.11 | ≥ 5.6.0, < 6.4.8 | ≥ 7.0.0, < 7.0.3
- fortimanager≥ 7.0.0, ≤ 7.0.2 | ≥ 6.4.0, ≤ 6.4.7 | ≥ 6.2.0, ≤ 6.2.12 | ≥ 6.0.0, ≤ 6.0.12 | ≥ 5.6.0, ≤ 5.6.11 | ≥ 5.6.0, < 6.4.8 | ≥ 7.0.0, < 7.0.3
- fortios≥ 6.0.0, < 6.2.11 | ≥ 6.4.0, < 6.4.9 | ≥ 7.0.0, < 7.0.6
- fortiproxy≥ 1.0.0, < 2.0.9 | ≥ 7.0.0, < 7.0.4
1 vendor · 4 products
References
2 links- fortiguard.com/advisory/FG-IR-21-206Not Applicable
- www.fortiguard.com/psirt/FG-IR-21-206Vendor Advisory