CVE-2021-22124

highpriority · track · 30EPSS 0.010 · 63 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.02% (63rd) EPSS

CVSS 7.8 · high

Is it mine?

16 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

An uncontrolled resource consumption (denial of service) vulnerability in the login modules of FortiSandbox 3.2.0 through 3.2.2, 3.1.0 through 3.1.4, and 3.0.0 through 3.0.6; and FortiAuthenticator before 6.0.6 may allow an unauthenticated attacker to bring the device into an unresponsive state via specifically-crafted long request parameters.

cvss

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

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.8

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 10 · impact 6.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:F/RL:X/RC:Xsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · psirt@fortinet.comexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USprimaryCWE-400US

affected products (16)

Products and version ranges known to be affected.

Fortinet Fortinet FortiSandbox, FortiAuthenticator≤ FortiSandbox 3.2.2, 3.2.1, 3.2.0, 3.1.4, 3.1.3, 3.1.2, 3.1.1, 3.1.0, 3.0.6, 3.0.5, 3.0.4, 3.0.3, 3.0.2, 3.0.1, 3.0.0, FortiAuthenticator before 6.0.6enisa_euvdEU
Fortinet Inc. FortiAuthenticator4.3.0 → 4.3.4fstec_bduRU
Fortinet Inc. FortiAuthenticator5.1.0 → 5.1.2fstec_bduRU
Fortinet Inc. FortiAuthenticator5.2.0 → 5.2.2fstec_bduRU
Fortinet Inc. FortiAuthenticator5.3.0 → 5.3.1fstec_bduRU
Fortinet Inc. FortiAuthenticator5.4.0 → 5.4.1fstec_bduRU
Fortinet Inc. FortiAuthenticator6.0.0 → 6.0.5fstec_bduRU
Fortinet Inc. FortiSandbox3.0.0 → 3.0.6fstec_bduRU
Fortinet Inc. FortiSandbox3.1.0 → 3.1.4fstec_bduRU
Fortinet Inc. FortiSandbox3.2.0 → 3.2.1fstec_bduRU
fortinet fortiauthenticator4.0.0 → 4.3.4nvdUScpe:2.3:a:fortinet:fortiauthenticator:*:*:*:*:*:*:*:*
fortinet fortiauthenticator5.0.0 → 5.5.0nvdUScpe:2.3:a:fortinet:fortiauthenticator:*:*:*:*:*:*:*:*
fortinet fortiauthenticator6.0.0 → 6.0.6nvdUScpe:2.3:a:fortinet:fortiauthenticator:*:*:*:*:*:*:*:*
fortinet fortisandbox3.0.0 → 3.0.7nvdUScpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:*
fortinet fortisandbox3.1.0 → 3.1.5nvdUScpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:*
fortinet fortisandbox3.2.0 → 3.2.2nvdUScpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:*

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 2021-08-04modified 2026-06-17

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references (6)

External citations — patches, advisories, analysis.

scry

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