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A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiAnalyzer…

Affects FortiAnalyzer, FortiAnalyzer Cloud, FortiManager and FortiManager Cloud 7.2.0-7.2.12, 7.4.0-7.4.11 and 7.6.0-7.6.7. The advisory's fix is 7.6.8 or above.

CVE-2026-126226EUVD-2026-123859

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

7.2HighCNA
Exploited
No known exploitation
Fix
Fixed in 7.6.8 or above
Who is exposed
Specific setups only

Do first: Check whether your setup matches what the bug needs. Affected FortiAnalyzer, FortiAnalyzer Cloud, FortiManager and FortiManager Cloud versions listed in the advisory (8.0.0, 7.6.0-7.6.7, 7.4.0-7.4.11, 7.2.0-7.2.12 and corresponding Cloud ranges).

Published
Last modified
Reference
Last checked
29/100 · provisional
Specific setups only
None on Exploit-DB, Metasploit or GitHub

Summary

A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiAnalyzer 8.0.0, FortiAnalyzer 7.6.0 through 7.6.7, FortiAnalyzer 7.4.0 through 7.4.11, FortiAnalyzer 7.2.0 through 7.2.12, FortiAnalyzer Cloud 8.0.0, FortiAnalyzer Cloud 7.6.0 through 7.6.7, FortiAnalyzer Cloud 7.4.1 through 7.4.11, FortiAnalyzer Cloud 7.2.1 through 7.2.12, FortiManager 8.0.0, FortiManager 7.6.0 through 7.6.7, FortiManager 7.4.0 through 7.4.11, FortiManager 7.2.0 through 7.2.12, FortiManager Cloud 8.0.0, FortiManager Cloud 7.6.0 through 7.6.7, FortiManager Cloud 7.4.1 through 7.4.11, FortiManager Cloud 7.2.1 through 7.2.12 may allow an authenticated privileged attacker to execute unauthorized code or commands via crafted report schedule name.

Who should check

Teams running Fortinet FortiAnalyzer, FortiAnalyzer Cloud, FortiManager or FortiManager Cloud in versions 8.0.0, 7.6.0-7.6.7, 7.4.0-7.4.11 or 7.2.0-7.2.12.

Read the source excerpt

“An improper neutralization of special elements used in an OS Command ('OS Command Injection') vulnerability [CWE-78] in FortiAnalyzer, FortiAnalyzer Cloud, FortiManager and FortiManager Cloud”

fortiguard.fortinet.com

cve.now Index

29Pcve.now Index 29 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure8/25Specific setups only, reachable over the network
  • Reach14/20Affects Fortinet (an enterprise product or network appliance)
  • Severity7.2/10CVSS 7.2
  • No patch0/5No signal

What would change the score

  • Would score about 79 if added to CISA KEV
  • Would score about 74 if CISA's SSVC rates exploitation active
  • Would score about 36 if CISA's SSVC rates it automatable

What to do

  • Check whether your setup matches what the bug needs.

    Affected FortiAnalyzer, FortiAnalyzer Cloud, FortiManager and FortiManager Cloud versions listed in the advisory (8.0.0, 7.6.0-7.6.7, 7.4.0-7.4.11, 7.2.0-7.2.12 and corresponding Cloud ranges).
  • Upgrade to a fixed version: 7.6.8 or above.

Check your systems with an agent

Paste this into a coding or ops agent. It checks your systems read-only and reports a table per asset.

Check whether my systems are affected by CVE-2026-126226 (A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiAnalyzer…), using the cve.now data below.

Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.

What cve.now has for CVE-2026-126226 (entry last updated 2026-11-11):
Affected:
- Fortinet FortiManager: from 7.6.0, through 7.6.7; from 7.4.0, through 7.4.11; from 7.2.0, through 7.2.12
- Fortinet FortiAnalyzer: from 7.6.0, through 7.6.7; from 7.4.0, through 7.4.11; from 7.2.0, through 7.2.12
- Fortinet FortiManager Cloud: from 7.6.0, through 7.6.7; from 7.4.1, through 7.4.11; from 7.2.1, through 7.2.12
- Fortinet FortiAnalyzer Cloud: from 7.6.0, through 7.6.7; from 7.4.1, through 7.4.11; from 7.2.1, through 7.2.12
Fixed versions: 7.6.8 or above.
Conditions (all must be true for the bug to be hit):
- Affected FortiAnalyzer, FortiAnalyzer Cloud, FortiManager and FortiManager Cloud versions listed in the advisory (8.0.0, 7.6.0-7.6.7, 7.4.0-7.4.11, 7.2.0-7.2.12 and corresponding Cloud ranges). (source: https://fortiguard.fortinet.com/psirt/FG-IR-26-241)
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
Attacker needs: network access, high-privilege login, no user action.
CISA KEV: CVE-2026-126226 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-126226 only. If you also check another CVE, look up its own KEV status; never assume it from this one.

How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.

Verify against the linked advisories before concluding, and cite the date you read each one:
- https://fortiguard.fortinet.com/psirt/FG-IR-26-241
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.

Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.

Entry: https://cve.now/CVE-2026-126226
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example execute with name cve.get and arguments {"id": "CVE-2026-126226"}.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • Fortinet FortiManager

    From 7.6.0 · through 7.6.7; From 7.4.0 · through 7.4.11; From 7.2.0 · through 7.2.12

  • Fortinet FortiAnalyzer

    From 7.6.0 · through 7.6.7; From 7.4.0 · through 7.4.11; From 7.2.0 · through 7.2.12

  • Fortinet FortiManager Cloud

    From 7.6.0 · through 7.6.7; From 7.4.1 · through 7.4.11; From 7.2.1 · through 7.2.12

  • Fortinet FortiAnalyzer Cloud

    From 7.6.0 · through 7.6.7; From 7.4.1 · through 7.4.11; From 7.2.1 · through 7.2.12

Evidence 3

Vendor advisory · 1

Establishes: Affected and fixed versions.

  1. Link

CVE record · 2

Establishes: The identifier and description.

  1. Record
  2. Record

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-126226

Is CVE-2026-126226 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

What does this mean?

The flaw is an OS command injection in the report schedule name, where a crafted name can be used to run commands the attacker is not authorized to run on the device. The advisory describes the impact as unauthorized code or command execution on the affected device.Source: fortiguard.fortinet.com

Which versions are affected by CVE-2026-126226?

FortiManager: from 7.6.0 through 7.6.7; from 7.4.0 through 7.4.11; from 7.2.0 through 7.2.12. FortiAnalyzer: from 7.6.0 through 7.6.7; from 7.4.0 through 7.4.11; from 7.2.0 through 7.2.12. FortiManager Cloud: from 7.6.0 through 7.6.7; from 7.4.1 through 7.4.11; from 7.2.1 through 7.2.12. FortiAnalyzer Cloud: from 7.6.0 through 7.6.7; from 7.4.1 through 7.4.11; from 7.2.1 through 7.2.12.Source: cve.now feed data

Am I affected, and how do I check?

The listed ranges are FortiAnalyzer and FortiManager 7.2.0-7.2.12, 7.4.0-7.4.11 and 7.6.0-7.6.7. The Cloud versions are 7.2.1-7.2.12, 7.4.1-7.4.11 and 7.6.0-7.6.7 for FortiManager Cloud and FortiAnalyzer Cloud. To check a device, look at its firmware version in the admin GUI or with the get system status command.Source: fortiguard.fortinet.com

How do I fix CVE-2026-126226?

Upgrade to 7.6.8 or above, as the advisory directs. The facts give no fixed version for the 7.4 or 7.2 branches, so check the advisory for the fix in those branches.Source: fortiguard.fortinet.com