CVE-2024-46256

CRITICALNVD 9.89.8—Weaponized

9.8

A Command injection vulnerability in requestLetsEncryptSsl in NginxProxyManager 2.11.3 allows an attacker to RCE via Add Let's Encrypt Certificate.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 98.3%
KEV: Not listed

Published

September 27, 2024

Last Modified

June 3, 2025

References (4)

Weakness Classification(1)

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

CWE-77Command Injection

Data Freshness Timeline

(refreshed 16× in last 7d / 20× 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.

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Publicly available exploits

(1 reference)

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

GitHub PoCbarttran2k/POC_CVE-2024-46256
First seen Sep 19, 2024
POC_CVE-2024-46256
Open source ↗

Frequently asked(5)

What is CVE-2024-46256?

CVE-2024-46256 is a critical vulnerability published on September 27, 2024. A Command injection vulnerability in requestLetsEncryptSsl in NginxProxyManager 2.11.3 allows an attacker to RCE via Add Let's Encrypt Certificate.

When was CVE-2024-46256 disclosed?

CVE-2024-46256 was first published in the National Vulnerability Database on September 27, 2024, with the most recent update on June 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2024-46256 actively exploited?

CVE-2024-46256 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2024-46256?

CVE-2024-46256 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2024-46256?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-46256, 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

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CVE-2024-46256

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2024-46256?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)