CVE-2021-26115

highpriority · track · 31EPSS 0.008 · 56 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.79% (56th) EPSS

CVSS 7.8 · high

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.6highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:X/RC:Csecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@fortinet.comexploitability 1.8 · impact 5.9

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-78USCWE-79US

affected products (9)

Products and version ranges known to be affected.

Fortinet FortiWAN≤ 4.1.1 ≤4.1.3enisa_euvdEU
Fortinet FortiWAN≤ 4.0.0 ≤4.0.6enisa_euvdEU
Fortinet FortiWAN≤ 4.2.5 ≤4.2.7enisa_euvdEU
Fortinet FortiWAN≤ 4.2.1 ≤4.2.2enisa_euvdEU
Fortinet FortiWAN≤ 4.4.0 ≤4.4.1enisa_euvdEU
Fortinet FortiWAN≤ 4.3.0 ≤4.3.1enisa_euvdEU
Fortinet FortiWAN≤ 4.5.0 ≤4.5.7enisa_euvdEU
Fortinet Inc. FortiWan≤ 4.5.7fstec_bduRU
fortinet fortiwan< 4.5.8nvdUScpe:2.3:a:fortinet:fortiwan:*:*:*:*:*:*:*:*

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2024-12-19modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

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