CVE-2026-35616

CRITICALNVD 9.89.8—Trending — 4 sources updated this weekExploited in the wild

9.8

A improper access control vulnerability in Fortinet FortiClientEMS 7.4.5 through 7.4.6 may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.

CVSS v3: 9.8
EG Score: 9.8(high)
EPSS: 97.5%
KEV: ⚠ Exploited

Published

April 4, 2026

Last Modified

April 6, 2026

Advisory Details (2)

Auto-updated May 18, 2026

⚠️ Active exploitation confirmed. Patch available. Sources: cisa.

cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-35616

generic🔴 Active Exploitation

PSIRT | FortiGuard Labs

https://fortiguard.fortinet.com/psirt/FG-IR-26-099

Weakness Classification(1)

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

CWE-284Improper Access Control

Data Freshness Timeline

(refreshed 20× 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.

2026-05-31 23:19 UTCEG score recompute
2026-05-31 23:19 UTCGHSA enrichment
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 22:20 UTCkev_newly_listed
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 20:35 UTCkev_newly_listed
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 19:13 UTCkev_newly_listed
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch

Publicly available exploits

(1 reference)

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

Nucleihttp/cves/2026/CVE-2026-35616.yaml
First seen Jan 1, 2026
FortiClient EMS - Authentication Bypass
Open source ↗

Frequently asked(6)

What is CVE-2026-35616?

CVE-2026-35616 is a critical vulnerability published on April 4, 2026. A improper access control vulnerability in Fortinet FortiClientEMS 7.4.5 through 7.4.6 may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.

When was CVE-2026-35616 disclosed?

CVE-2026-35616 was first published in the National Vulnerability Database on April 4, 2026, with the most recent update on April 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-35616 actively exploited?

Yes. CISA added CVE-2026-35616 to the Known Exploited Vulnerabilities catalog on April 6, 2026, affecting Fortinet FortiClient EMS. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2026-35616?

CVE-2026-35616 has a CVSS v3 base score of 9.8 (NVD).

Which products are affected by CVE-2026-35616?

CVE-2026-35616 affects Fortinet FortiClient EMS. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2026-35616?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-35616, 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-2026-35616

📅 Published

🔄 Last Modified

📋 Advisory Details (2)