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A improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiMail 8.0.0 through…

Affects Fortinet FortiMail 8.0.0 through 8.0.1, 7.6.0 through 7.6.6, 7.4.0 through 7.4.8 and all 7.2 versions. Fixed in FortiMail 8.0.2 or above.

CVE-2026-126164EUVD-2026-123838

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

9.4CriticalCNA
Exploited
No known exploitation
Fix
Fixed in 8.0.2
Who is exposed
Not reported

Do first: Upgrade to a fixed version: 8.0.2.

Published
Last modified
Reference
Last checked
40/100 · provisional
Unclear
None on Exploit-DB, Metasploit or GitHub
On X
View the cve.now post

Summary

Fortinet FortiMail has an SQL injection flaw that lets an attacker run unauthorized code or commands on the system. The attacker can reach it remotely over the network without logging in, by sending specially crafted requests.

Read the original description

A improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.6, FortiMail 7.4.0 through 7.4.8, FortiMail 7.2 all versions may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.

Who should check

Teams running self-managed Fortinet FortiMail 8.0.0-8.0.1, 7.6.0-7.6.6, 7.4.0-7.4.8 or any 7.2 (7.2 needs migration to a fixed release). FortiMail Cloud is already remediated.

Read the source excerpt

“FortiMail 7.2 7.2 all versions Migrate to a fixed release”

fortiguard.fortinet.com

cve.now Index

40Pcve.now Index 40 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure17/25No login or user action needed, reachable over the network without a login · Unknown: Advisories don't say whether default setups are affected
  • Reach14/20Affects Fortinet (an enterprise product or network appliance)
  • Severity9.4/10CVSS 9.4
  • No patch0/5No signal

What would change the score

  • Would score about 85 if added to CISA KEV
  • Would score about 80 if CISA's SSVC rates exploitation active
  • Would score about 45 if advisories confirm default setups are exposed

What to do

  • Upgrade to a fixed version: 8.0.2.

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-2026-126164 (A improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiMail 8.0.0 through…), 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-2026-126164 (entry last updated 2026-11-11):
Affected:
- Fortinet FortiMail: from 8.0.0, through 8.0.1; from 7.6.0, through 7.6.6; from 7.4.0, through 7.4.8; from 7.2.0, through 7.2.9
Fixed versions: 8.0.2.
Conditions (all must be true for the bug to be hit):
- Running FortiMail 8.0.0 through 8.0.1 (source: https://fortiguard.fortinet.com/psirt/FG-IR-26-216)
- Running FortiMail 7.6.0 through 7.6.6 (source: https://fortiguard.fortinet.com/psirt/FG-IR-26-216)
- Running FortiMail 7.4.0 through 7.4.8 (source: https://fortiguard.fortinet.com/psirt/FG-IR-26-216)
- Running any FortiMail 7.2 version (source: https://fortiguard.fortinet.com/psirt/FG-IR-26-216)
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
Attacker needs: network access, no login, no user action.
CISA KEV: CVE-2026-126164 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-126164 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-26-216
- https://www.cve.org/CVERecord?id=CVE-2026-126164
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-2026-126164
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-2026-126164"}.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. Posted on X by cve.now

Affected versions

  • Fortinet FortiMail

    From 8.0.0 · through 8.0.1; From 7.6.0 · through 7.6.6; From 7.4.0 · through 7.4.8; From 7.2.0 · through 7.2.9

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-2026-126164

Is CVE-2026-126164 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?

A flaw in how FortiMail handles SQL commands lets an unauthenticated attacker send crafted requests that can run unauthorized code or commands on the FortiMail system.Source: fortiguard.fortinet.com, cve.org

Which versions are affected by CVE-2026-126164?

FortiMail: from 8.0.0 through 8.0.1; from 7.6.0 through 7.6.6; from 7.4.0 through 7.4.8; from 7.2.0 through 7.2.9.Source: cve.now feed data

Am I affected, and how do I check?

Affected versions are FortiMail 8.0.0 through 8.0.1, 7.6.0 through 7.6.6, 7.4.0 through 7.4.8, and all 7.2 versions. The installed FortiMail firmware version can be compared against these ranges.Source: fortiguard.fortinet.com, cve.org

How do I fix CVE-2026-126164?

Upgrade to FortiMail version 8.0.2 or above. The advisory lists no workaround.Source: fortiguard.fortinet.com, cve.org