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CVE-2023-43177

88
FAUCET Score

CVE-2023-43177 is a critical vulnerability affecting CrushFTP versions prior to 10.5.1, stemming from improperly controlled modification of dynamically-determined object attributes. This flaw carries a CVSS score of 9.8, indicating an unauthenticated, low-complexity attack that can lead to complete compromise of confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, with public exploit code available, including a Metasploit module and Nuclei templates, and has garnered significant community and media attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.5.2CPE matchmatch criteria
cpe:2.3:a:crushftp:crushftp:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
81.80%
Probability of exploitation in next 30 days
EPSS Percentile
99.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: CrushFTP Unauthenticated RCE · Aug 8, 2023
Nuclei: CVE-2023-43177 · Dec 12, 2023
This CVE's current EPSS score of 0.8180 is in the 98th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

convergetp.com / 2023/11/16/crushftp-zero-day-cve-2023-43177-discovered
ExploitThird Party Advisory
github.com / the-emmons/CVE-Disclosures/blob/main/Pending/CrushFTP-2023-1.md
Third Party Advisory