CVE-2026-44278

Local information disclosure via hard-coded cryptographic key

Published May 12, 2026 · Updated May 12, 2026

Hard-coded key use in Fortinet FortiClient for Windows 7.2.0 through 7.2.14 and 7.4.0 through 7.4.2 allows local users to disclose data. Fortinet has not published the cryptographic locus, the data protected by the embedded key, or the operation that exposes it. Exploitation requires local access and high privileges; the published impact is limited to confidentiality, with no reported data modification or service interruption.

CVSS severity2.3
Low
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded key use in Fortinet FortiClient for Windows 7.2.0 through 7.2.14 and 7.4.0 through 7.4.2 allows local users to disclose data. Fortinet has not published the cryptographic locus, the data protected by the embedded key, or the operation that exposes it. Exploitation requires local access and high privileges; the published impact is limited to confidentiality, with no reported data modification or service interruption.

The record

CVE
CVE-2026-44278
Published
May 12, 2026
Updated
May 12, 2026
Vendor
Fortinet
Product
FortiClient for Windows
Classifications
CWE-321
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. May 12, 2026CVE publishedPublication date reported by the CVE source.
  2. May 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.2.0 <=7.2.14
  2. Affected versionversion=7.4.0 <=7.4.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Fortinet · FortiClient for Windowsversion=7.2.0 <=7.2.14; version=7.4.0 <=7.4.2

Published CVSS scores

2.3Fortinet, Inc.CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-321Use of Hard-coded Cryptographic Key

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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