CVE-2024-23113
CriticalExploitedPublic exploitA 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…
Published Feb 16, 2024 · Updated Oct 21, 2025
Key Facts
Patch immediately- CVE-2024-23113 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting FortiProxy (Fortinet), FortiSwitchManager (Fortinet), FortiOS (Fortinet) and 1 more product.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 9, 2024. Public exploit code is available.
- EPSS estimates a 62% probability of exploitation in the next 30 days.
- Fixed versions are available, including FortiOS <=7.0.13, FortiPAM <=1.0.3, FortiProxy <=7.0.14.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
62%
Higher than 99.1% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2024-23113 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Oct 9, 2024 | Oct 30, 2024 | Not reported |
| Industry KEV feed | Oct 9, 2024 | Oct 30, 2024 | Not reported |
| CIRCL KEV | Oct 9, 2024 | Oct 30, 2024 | Not reported |
| ENISA EUVD | Oct 9, 2024 | n/a | Not reported |
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected Products
9 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| FortiProxyFortinet | >= 7.4.0 | 7.0.14 |
| FortiSwitchManagerFortinet | >= 7.2.0 | 7.0.3 |
| FortiOSFortinet | >= 7.4.0 | 7.0.13 |
| FortiPAMFortinet | 1.2.0, >= 1.2.0 | 1.0.3 |
Patched Releases
FortiOS
<=7.0.13
FortiPAM
<=1.0.3
FortiProxy
<=7.0.14
FortiSwitchManager
<=7.0.3
Timeline
Publicly disclosed
Feb 16, 2024
Added to CISA KEV
Oct 9, 2024
Added to Industry KEV feed
Oct 9, 2024
Added to CIRCL KEV
Oct 9, 2024
Added to ENISA EUVD
Oct 9, 2024
Last updated
Oct 21, 2025
Weakness Type
- CWE-134 Use of Externally-Controlled Format String
References
- advisoryhttps://fortiguard.com/psirt/FG-IR-23-063
- advisoryhttps://fortiguard.com/psirt/FG-IR-23-268
- advisoryhttps://fortiguard.com/psirt/FG-IR-23-301
- advisoryhttps://fortiguard.com/psirt/FG-IR-23-357
- advisoryhttps://fortiguard.com/psirt/FG-IR-24-015
FAQ
Common Questions.
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.…
Affected: FortiProxy (Fortinet) versions >= 7.4.0; FortiSwitchManager (Fortinet) versions >= 7.2.0; FortiOS (Fortinet) versions >= 7.4.0, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 9, 2024.
Yes. It was added on Oct 9, 2024 with a federal remediation due date of Oct 30, 2024.
Public exploit code is available.
Fixed versions are available, including FortiOS <=7.0.13, FortiPAM <=1.0.3, FortiProxy <=7.0.14.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2024-23113 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo