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CVE-2021-26106

23
FAUCET Score

CVE-2021-26106 is a high-severity OS command injection vulnerability (CWE-78) affecting FortiAP, FortiAP-S, and FortiAP-W2 devices running specific console versions. An authenticated attacker can exploit this by providing specially crafted arguments to the "kdbg" CLI command, leading to unauthorized command execution with high impact on confidentiality, integrity, and availability. While the vulnerability has a CVSS score of 7.8, there is currently no evidence of active exploitation, public exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.4.1, < 6.4.6CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiap:*:*:*:*:*:*:*:*
>= 6.2.4, < 6.2.6CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiap-s:*:*:*:*:*:*:*:*
>= 6.2.4, < 6.2.6CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiap-w2:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.29%
Probability of exploitation in next 30 days
EPSS Percentile
21.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0029 is in the 58th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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 / advisory/FG-IR-20-210
Vendor Advisory