CVE-2023-43177

CRITICALNVD 9.89.8—Weaponized

9.8

CrushFTP prior to 10.5.1 is vulnerable to Improperly Controlled Modification of Dynamically-Determined Object Attributes.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 98.9%
KEV: Not listed

Published

November 18, 2023

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://convergetp.com/2023/11/16/crushftp-zero-day-cve-2023-43177-discovered/
cve@mitrehttps://github.com/the-emmons/CVE-Disclosures/blob/main/Pending/CrushFTP-2023-1.md
af854a3a-2127-422b-91ae-364da2661108https://convergetp.com/2023/11/16/crushftp-zero-day-cve-2023-43177-discovered/
af854a3a-2127-422b-91ae-364da2661108https://github.com/the-emmons/CVE-Disclosures/blob/main/Pending/CrushFTP-2023-1.md

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-913

Data Freshness Timeline

(refreshed 8× in last 7d / 17× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-24 13:37 UTCEG score recompute
2026-05-24 13:37 UTCGHSA enrichment

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

GitHub PoCthe-emmons/CVE-2023-43177
First seen Dec 27, 2023
CrushFTP <= 10.5.1 Remote Code Execution. Researchers: Ryan Emmons, Evan Malamis
Open source ↗
Metasploitexploit/multi/http/crushftp_rce_cve_2023_43177✓ verified
First seen Aug 8, 2023
CrushFTP Unauthenticated RCE
Open source ↗
Nucleihttp/cves/2023/CVE-2023-43177.yaml
First seen Jan 1, 2023
CrushFTP < 10.5.1 - Unauthenticated Remote Code Execution
Open source ↗

Frequently asked(5)

What is CVE-2023-43177?

CVE-2023-43177 is a critical vulnerability published on November 18, 2023. CrushFTP prior to 10.5.1 is vulnerable to Improperly Controlled Modification of Dynamically-Determined Object Attributes.

When was CVE-2023-43177 disclosed?

CVE-2023-43177 was first published in the National Vulnerability Database on November 18, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-43177 actively exploited?

CVE-2023-43177 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-43177?

CVE-2023-43177 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2023-43177?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-43177, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-43177

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