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CVE-2021-22123

71
FAUCET Score

CVE-2021-22123 is an OS command injection vulnerability in the management interface of FortiWeb versions 6.3.7 and below, 6.2.3 and below, 6.1.x, 6.0.x, and 5.9.x. A remote authenticated attacker can exploit this flaw via the SAML server configuration page to execute arbitrary commands on the system. This vulnerability carries a high CVSS score of 8.8, indicating a severe impact with high confidentiality, integrity, and availability compromise, and has a high EPSS score suggesting a significant likelihood of exploitation. While not currently listed in CISA's KEV catalog, there is notable community discussion and media coverage, indicating significant attention to this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.9.0, < 6.2.4CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*
>= 6.3.0, < 6.3.8CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.6HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
77.27%
Probability of exploitation in next 30 days
EPSS Percentile
99.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.7727 is in the 99th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

fortinetvendor investigatingvia nvd_reference
View patch

References

fortiguard.com / advisory/FG-IR-20-120
Vendor Advisory