CVE-2021-22123

highpriority · attend · 75EPSS 0.844 · 100 %ileexploit · PoCEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

84.4% (100th) EPSS

CVSS 9 · high

Is it mine?

5 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

An OS command injection vulnerability in FortiWeb's management interface 6.3.7 and below, 6.2.3 and below, 6.1.x, 6.0.x, 5.9.x may allow a remote authenticated attacker to execute arbitrary commands on the system via the SAML server configuration page.

cvss

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

9.0

010

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

v2.09highAV:N/AC:L/Au:S/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8 · impact 10

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.18.8highAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.6highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Hsecondary · ENISA EU

v3.17.6highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Hsecondary · psirt@fortinet.comexploitability 2.8 · impact 4.7

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · 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-78USprimaryCWE-78US

exploits (1)

Public proof-of-concept and weaponised exploit code.

murataydemir/CVE-2021-22123[CVE-2021-22123] Fortinet FortiWeb Authenticated OS Command InjectionPoC · poc_in_github

affected products (5)

Products and version ranges known to be affected.

Fortinet Fortinet FortiWeb≤ FortiWeb 6.3.7 and below, 6.2.3 and below, 6.1.x, 6.0.x, 5.9.xenisa_euvdEU
Fortinet Inc. FortiWeb5.9.0 → 6.2.4fstec_bduRU
Fortinet Inc. FortiWeb6.3.0 → 6.3.8fstec_bduRU
fortinet fortiweb5.9.0 → 6.2.4nvdUScpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*
fortinet fortiweb6.3.0 → 6.3.8nvdUScpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2021-06-01modified 2026-06-17

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references (8)

External citations — patches, advisories, analysis.

scry

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