CVE-2023-41840

HIGHNVD 7.87.8—

7.8

A untrusted search path vulnerability in Fortinet FortiClientWindows 7.0.9 allows an attacker to perform a DLL Hijack attack via a malicious OpenSSL engine library in the search path.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 27.0%
KEV: Not listed

Published

November 14, 2023

Last Modified

November 21, 2024

References (2)

psirt@fortinethttps://fortiguard.com/psirt/FG-IR-23-274
af854a3a-2127-422b-91ae-364da2661108https://fortiguard.com/psirt/FG-IR-23-274

Weakness Classification(1)

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

CWE-426Untrusted Search Path

Data Freshness Timeline

(refreshed 10× in last 7d / 19× 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 22:30 UTCepss_batch
2026-05-31 22:29 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 13:43 UTCepss_batch
2026-05-26 13:43 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 14:00 UTCEG score recompute
2026-05-24 14:00 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-41840?

CVE-2023-41840 is a high vulnerability published on November 14, 2023. A untrusted search path vulnerability in Fortinet FortiClientWindows 7.0.9 allows an attacker to perform a DLL Hijack attack via a malicious OpenSSL engine library in the search path.

When was CVE-2023-41840 disclosed?

CVE-2023-41840 was first published in the National Vulnerability Database on November 14, 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-2023-41840 actively exploited?

CVE-2023-41840 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 27.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-41840?

CVE-2023-41840 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2023-41840?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-41840, 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-2023-41840

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-41840?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)