CVE-2022-45856

mediumpriority · track · 24EPSS 0.002 · 14 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.23% (14th) EPSS

CVSS 5.9 · medium

Is it mine?

61 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

An improper certificate validation vulnerability [CWE-295] in FortiClientWindows 6.4 all versions, 7.0.0 through 7.0.7, FortiClientMac 6.4 all versions, 7.0 all versions, 7.2.0 through 7.2.4, FortiClientLinux 6.4 all versions, 7.0 all versions, 7.2.0 through 7.2.4, FortiClientAndroid 6.4 all versions, 7.0 all versions, 7.2.0 and FortiClientiOS 5.6 all versions, 6.0.0 through 6.0.1, 7.0.0 through 7.0.6 SAML SSO feature may allow an unauthenticated attacker to man-in-the-middle the communication between the FortiClient and both the service provider and the identity provider.

cvss

Technical severity, 0–10. One row per scoring source.

5.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.2 · impact 3.6

v3.15.9mediumAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.14.6mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:U/RC:Csecondary · ENISA EU

v3.14.8mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · psirt@fortinet.comexploitability 2.2 · impact 2.5

v3.15.4mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-295USCWE-295US

affected products (61)

Products and version ranges known to be affected.

Fortinet FortiClient <7.0.7all versionscert_bundDE
Fortinet FortiClient <7.0.8all versionscert_bundDE
Fortinet FortiClient <7.2.1all versionscert_bundDE
Fortinet FortiClient <7.2.3all versionscert_bundDE
Fortinet FortiClient <7.2.5all versionscert_bundDE
Fortinet FortiClient< 7.0.7cert_bundDE
Fortinet FortiClient< 7.0.8cert_bundDE
Fortinet FortiClient< 7.2.1cert_bundDE
Fortinet FortiClient< 7.2.3cert_bundDE
Fortinet FortiClient< 7.2.5cert_bundDE
Fortinet FortiClientAndroid≤ 5.4.0 ≤5.4.2enisa_euvdEU
Fortinet FortiClientAndroid≤ 6.4.6enisa_euvdEU
Fortinet FortiClientAndroid≤ 6.4.1enisa_euvdEU
Fortinet FortiClientAndroid≤ 5.2.0 ≤5.2.8enisa_euvdEU
Fortinet FortiClientAndroid≤ 6.0.0enisa_euvdEU
Fortinet FortiClientAndroid≤ 5.0.0 ≤5.0.3enisa_euvdEU
Fortinet FortiClientAndroid≤ 7.0.2 ≤7.0.3enisa_euvdEU
Fortinet FortiClientAndroid≤ 7.0.6 ≤7.0.7enisa_euvdEU
Fortinet FortiClientAndroid≤ 7.2.0enisa_euvdEU
Fortinet FortiClientAndroid≤ 6.4.4enisa_euvdEU

showing 20 of 61

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-2111Fortinet FortiClient: Mehrere SchwachstellenDeutsch2024-09-10csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Fortinet FortiClient ausnutzen, um Informationen offenzulegen, beliebigen Code auszuführen oder einen Denial-of-Service-Zustand zu erzeugen.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2024-09-10modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

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