Fortinet Multiple Products Format String Vulnerability
- Severity
- Critical9.8CVSS 3.1, Critical
- EPSS
- 62%
- Published
- 15 Feb 2024
- Updated
- 17 Jun 2026
Description
Title, description and vendor guidance are quoted from the source records.
A use of externally-controlled format string in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, FortiProxy versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, 7.0.0 through 7.0.14, FortiPAM versions 1.2.0, 1.1.0 through 1.1.2, 1.0.0 through 1.0.3, FortiSwitchManager versions 7.2.0 through 7.2.3, 7.0.0 through 7.0.3 allows attacker to execute unauthorized code or commands via specially crafted packets.
Weakness: CWE-134
Known exploited
Added to CISA KEV on 9 Oct 2024
Federal remediation due date: 30 Oct 2024
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Exploit prediction
62% probability of exploitation in the next 30 days (percentile 99%).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
What the source states, per branch
Versions matched by Patcharo
Fortinet FortiOSSource: Fortinet (CVE record)
| Branch | Affected | Fixed in |
|---|---|---|
| 7.4 | 7.4.0 – 7.4.2 | Fixed after 7.4.2 |
| 7.2 | 7.2.0 – 7.2.6 | Fixed after 7.2.6 |
| 7.0 | 7.0.0 – 7.0.13 | Fixed after 7.0.13 |
Versions not listed are stated unaffected by the vendor.
Fortinet FortiProxySource: Fortinet (CVE record)
| Branch | Affected | Fixed in |
|---|---|---|
| 7.4 | 7.4.0 – 7.4.2 | Fixed after 7.4.2 |
| 7.2 | 7.2.0 – 7.2.8 | Fixed after 7.2.8 |
| 7.0 | 7.0.0 – 7.0.15 | Fixed after 7.0.15 |
Versions not listed are stated unaffected by the vendor.
Affected products
- Fortinet FortiSwitchManager · 7.2.0 ≤ 7.2.3, 7.0.0 ≤ 7.0.3
- Fortinet FortiPAM · 1.2.0, 1.1.0 ≤ 1.1.2, 1.0.0 ≤ 1.0.3
Workaround / Vendor remediation
Vendor remediation · FortiOS
Please upgrade to FortiWeb version 7.4.3 or above Please upgrade to FortiVoice version 7.0.2 or above Please upgrade to FortiVoice version 6.4.9 or above Please upgrade to FortiSwitchManager version 7.2.4 or above Please upgrade to FortiSwitchManager version 7.0.4 or above Please upgrade to FortiOS version 7.4.3 or above Please upgrade to FortiOS version 7.2.7 or above Please upgrade to FortiOS version 7.0.14 or above Please upgrade to FortiAuthenticator version 7.0.0 or above Please upgrade to FortiPAM version 1.2.1 or above Please upgrade to FortiPAM version 1.1.3 or above Please upgrade to FortiProxy version 7.4.3 or above Please upgrade to FortiProxy version 7.2.9 or above Please upgrade to FortiProxy version 7.0.16 or above
Vendor remediation · FortiProxy
Please upgrade to FortiWeb version 7.4.3 or above Please upgrade to FortiVoice version 7.0.2 or above Please upgrade to FortiVoice version 6.4.9 or above Please upgrade to FortiSwitchManager version 7.2.4 or above Please upgrade to FortiSwitchManager version 7.0.4 or above Please upgrade to FortiOS version 7.4.3 or above Please upgrade to FortiOS version 7.2.7 or above Please upgrade to FortiOS version 7.0.14 or above Please upgrade to FortiAuthenticator version 7.0.0 or above Please upgrade to FortiPAM version 1.2.1 or above Please upgrade to FortiPAM version 1.1.3 or above Please upgrade to FortiProxy version 7.4.3 or above Please upgrade to FortiProxy version 7.2.9 or above Please upgrade to FortiProxy version 7.0.16 or above
References
Provenance
Every fact on this page comes from the sources below. Nothing is written by an AI.
- Fortinet (CVE record)
- Fortinet (CVE record) · 27 Sept 2026, 23:46 UTC · Parser patcharo-cve5/1.1.0
- CISA Known Exploited Vulnerabilities
- CISA Known Exploited Vulnerabilities · 27 Sept 2026, 23:42 UTC · Parser patcharo-kev/1.0.0
- NVD
- NVD · 27 Sept 2026, 23:44 UTC · Parser patcharo-nvd/1.0.0
- FIRST EPSS
- FIRST EPSS · 27 Sept 2026, 23:46 UTC · Parser patcharo-epss/1.0.0
Last verified: 28 Sept 2026, 02:31 UTC