CVE-2023-47539

CRITICALNVD 9.89.8—Trending — 3 sources updated this week

9.8

An improper access control vulnerability in FortiMail version 7.4.0 configured with RADIUS authentication and remote_wildcard enabled may allow a remote unauthenticated attacker to bypass admin login via a crafted HTTP request.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 31.2%
KEV: Not listed

Published

March 18, 2025

Last Modified

July 24, 2025

Advisory Details (1)

Auto-updated May 30, 2026

No patch confirmed yet.

generic

PSIRT | FortiGuard Labs

https://fortiguard.com/psirt/FG-IR-23-439

Weakness Classification(1)

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

CWE-284Improper Access Control

Data Freshness Timeline

(refreshed 16× 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.

2026-06-05 06:09 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-04 13:11 UTCepss_batch
2026-06-04 13:11 UTCepss_batch
2026-06-04 13:11 UTCepss_batch
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 22:30 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-30 09:25 UTCEG score recompute
2026-05-30 09:25 UTCGHSA enrichment
2026-05-29 13:43 UTCepss_batch

Frequently asked(5)

What is CVE-2023-47539?

CVE-2023-47539 is a critical vulnerability published on March 18, 2025. An improper access control vulnerability in FortiMail version 7.4.0 configured with RADIUS authentication and remote_wildcard enabled may allow a remote unauthenticated attacker to bypass admin login via a crafted HTTP request.

When was CVE-2023-47539 disclosed?

CVE-2023-47539 was first published in the National Vulnerability Database on March 18, 2025, with the most recent update on July 24, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-47539 actively exploited?

CVE-2023-47539 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-47539?

CVE-2023-47539 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2023-47539?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-47539, 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-2023-47539

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

PSIRT | FortiGuard Labs

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-47539?

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Advisory Details (1)

Frequently asked(5)

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