FortiOS
CVE-2023-25610: Buffer underflow in FortiSwitchManager, FortiAnalyzer and others
A buffer underwrite ('buffer underflow') vulnerability in the administrative interface of Fortinet FortiOS version 7.2.0 through 7.2.3, version 7.0.0 through 7.0.6, version 6.4.0 through 6.4.11 and version 6.2.12 and below, FortiProxy version 7.2.0 through 7.2.2, version 7.0.0 through 7.0.8, version 2.0.12 and below and FortiOS-6K7K version 7.0.5, version 6.4.0 through 6.4.10 and version 6.2.0 through 6.2.10 and below allows a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| FortiSwitchManager 7.2.0 to 7.2.1 | 7.2.2 or later |
| FortiSwitchManager 7.0.0 to 7.0.1 | 7.0.2 or later |
| FortiAnalyzer 7.2 | 7.2.1 or later |
| FortiAnalyzer 7.0.0 to 7.0.4 | 7.0.5 or later |
| FortiAnalyzer 6.4.0 to 6.4.11 | 6.4.12 or later |
| FortiAnalyzer 6.2.0 to 6.2.10 | 6.2.11 or later |
| FortiAnalyzer 6.0.0 to 6.0.11 | 6.0.12 or later |
| FortiOS-6K7K 7.0 | 7.0.10 or later |
| FortiOS-6K7K 6.4 | 6.4.12 or later |
| FortiOS-6K7K 6.4 | 6.4.12 or later |
| FortiOS-6K7K 6.4 | 6.4.12 or later |
| FortiOS-6K7K 6.4 | 6.4.12 or later |
| FortiOS-6K7K 6.2.9 to 6.2.12 | 6.2.13 or later |
| FortiOS-6K7K 6.2.6 to 6.2.7 | 6.2.13 or later |
| FortiOS-6K7K 6.2 | 6.2.13 or later |
| FortiOS-6K7K 6.0.12 to 6.0.18 | Upgrade past 6.0.18; see the advisory |
| FortiOS-6K7K 6.0 | See the advisory |
| FortiProxy 7.2.0 to 7.2.2 | 7.2.3 or later |
| FortiProxy 7.0.0 to 7.0.8 | 7.0.9 or later |
| FortiProxy 2.0.0 to 2.0.14 | Upgrade past 2.0.14; see the advisory |
| FortiProxy 1.2.0 to 1.2.13 | Upgrade past 1.2.13; see the advisory |
| FortiProxy 1.1.0 to 1.1.6 | Upgrade past 1.1.6; see the advisory |
| FortiOS 7.2.0 to 7.2.3 | 7.2.4 or later |
| FortiOS 7.0.0 to 7.0.9 | 7.0.10 or later |
| FortiOS 6.4.0 to 6.4.11 | 6.4.12 or later |
| FortiOS 6.2.0 to 6.2.12 | 6.2.13 or later |
| FortiOS 6.0.0 to 6.0.18 | 6.0.17 (upcoming) or later |
| FortiOS 5.6.0 to 5.6.14 | Upgrade past 5.6.14; see the advisory |
| FortiOS 5.4.0 to 5.4.13 | Upgrade past 5.4.13; see the advisory |
| FortiOS 5.2.0 to 5.2.15 | Upgrade past 5.2.15; see the advisory |
| FortiOS 5.0.0 to 5.0.14 | Upgrade past 5.0.14; see the advisory |
| FortiManager 7.2 | 7.2.1 or later |
| FortiManager 7.0.0 to 7.0.4 | 7.0.5 or later |
| FortiManager 6.4.0 to 6.4.11 | 6.4.12 or later |
| FortiManager 6.2.0 to 6.2.10 | 6.2.11 or later |
| FortiManager 6.0.0 to 6.0.11 | 6.0.12 or later |
| FortiWeb 7.2.0 to 7.2.1 | 7.2.2 or later |
| FortiWeb 7.0.0 to 7.0.6 | 7.0.7 or later |
| FortiWeb 6.4.0 to 6.4.2 | 6.4.3 or later |
| FortiWeb 6.3.0 to 6.3.22 | 6.3.23 or later |
| FortiWeb 6.2.0 to 6.2.7 | 6.2.8 or later |
| FortiWeb 6.1.0 to 6.1.3 | 6.1.4 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A buffer underwrite ('buffer underflow') vulnerability in the administrative interface of Fortinet FortiOS version 7.2.0 through 7.2.3, version 7.0.0 through 7.0.6, version 6.4.0 through 6.4.11 and version 6.2.12 and below, FortiProxy version 7.2.0 through 7.2.2, version 7.0.0 through 7.0.8, version 2.0.12 and below and FortiOS-6K7K version 7.0.5, version 6.4.0 through 6.4.10 and version 6.2.0 through 6.2.10 and below allows a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.