What is CVE-2021-26115?

CVE-2021-26115 is a high-severity vulnerability in Fortinet Fortiwan, classified under OS Command Injection. CVSS score: 7.8/10. Published 2024-12-19.

How severe is CVE-2021-26115?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2021-26115 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Fortinet Fortiwan

CVE-2021-26115

An OS command injection (CWE-78) vulnerability in FortiWAN version 4.5.7 and below Command Line Interface may allow a local, authenticated and unprivileged attacker to escalate their privileges to root via executing a specially-crafted command.An OS command injection (CWE-78) vulnerability in FortiWAN Command Line Interface may allow a local, authenticated and unprivileged attacker to escalate their privileges to root via executing a specially-crafted command.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.008 (52.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Fortinet Fortiwan — versions 4.5.0, 4.4.0, 4.3.0

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

psirt@fortinet.com (Vendor Advisory)

Frequently asked questions

What is CVE-2021-26115?: CVE-2021-26115 is a high-severity vulnerability in Fortinet Fortiwan, classified under OS Command Injection. CVSS score: 7.8/10. Published 2024-12-19.
How severe is CVE-2021-26115?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-26115 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.