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CVE-2021-32586

31
FAUCET Score

CVE-2021-32586 is a critical improper input validation vulnerability affecting FortiMail versions prior to 7.0.1. An unauthenticated attacker can exploit this flaw by sending specially crafted HTTP requests to the web server's CGI facilities, altering the underlying script interpreter's environment. With a CVSS score of 9.8, this vulnerability allows for complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code, the vulnerability has garnered significant community discussion, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.4.12CPE matchmatch criteria
cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
>= 6.0.0, < 6.0.12CPE matchmatch criteria
cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
>= 6.2.0, < 6.2.8CPE matchmatch criteria
cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
>= 6.4.0, < 6.4.6CPE matchmatch criteria
cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
7.0.0CPE matchmatch criteria
cpe:2.3:a:fortinet:fortimail:7.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.7HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
2.2
Impact Score
5.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.05%
Probability of exploitation in next 30 days
EPSS Percentile
60.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0106 is in the 46th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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 / psirt/FG-IR-21-008
Vendor Advisory