CVE-2023-43177
CriticalExploitedPublic exploitCrushFTP prior to 10.5.1 is vulnerable to Improperly Controlled Modification of Dynamically-Determined Object Attributes.
Published Nov 17, 2023 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2023-43177 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Crushftp.
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Mar 21, 2024. Public exploit code is available.
- EPSS estimates a 82% probability of exploitation in the next 30 days.
- Fixed versions are available, including Crushftp 10.5.2.
- 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)
82%
Higher than 99.6% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2023-43177 brief as a PDF
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Description
CrushFTP prior to 10.5.1 is vulnerable to Improperly Controlled Modification of Dynamically-Determined Object Attributes.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Mar 21, 2024 | n/a | Not reported |
| CIRCL KEV | Aug 1, 2025 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| CrushftpCrushftp | See advisory | 10.5.2 |
Patched Releases
Crushftp
10.5.2
Timeline
Publicly disclosed
Nov 17, 2023
Added to Industry KEV feed
Mar 21, 2024
Last updated
Nov 21, 2024
Added to CIRCL KEV
Aug 1, 2025
Weakness Type
- CWE-913 Improper Control of Dynamically-Managed Code Resources
References
- advisoryhttps://github.com/the-emmons/CVE-Disclosures/blob/main/Pending/CrushFTP-2023-1.md
- exploithttps://convergetp.com/2023/11/16/crushftp-zero-day-cve-2023-43177-discovered/
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
CrushFTP prior to 10.5.1 is vulnerable to Improperly Controlled Modification of Dynamically-Determined Object Attributes.
Affected: Crushftp. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Mar 21, 2024.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Crushftp 10.5.2.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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