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CVE-2022-22306

19
FAUCET Score

CVE-2022-22306 is an improper certificate validation vulnerability (CWE-295) affecting FortiOS versions 6.0.0-6.0.14, 6.2.0-6.2.10, 6.4.0-6.4.8, and 7.0.0. This medium-severity vulnerability (CVSS 5.3) allows a network-adjacent, unauthenticated attacker to perform a man-in-the-middle attack on communications between FortiGate devices and certain peers, such as private SDNs and external cloud platforms. While the attack complexity is high, successful exploitation could lead to high confidentiality impact. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.0.0, <= 6.0.14CPE matchmatch criteria
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
>= 6.2.0, <= 6.2.10CPE matchmatch criteria
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
>= 6.4.0, < 6.4.9CPE matchmatch criteria
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
7.0.0CPE matchmatch criteria
cpe:2.3:o:fortinet:fortios:7.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
9.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 3rd percentile among its peer group of 1,749 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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 / psirt/FG-IR-21-239
Vendor Advisory