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CVE-2026-126163 fortinet fortimail

8.1 highEPSS 0.4%

High (8.1) in fortinet fortimail. EPSS 0.4% estimated probability of exploitation activity in the next 30 days.

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A use of externally-controlled format string vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1 may allow a remote unauthenticated attacker to execute unauthorized code or commands via a specially crafted SMTP command.

Severity

CVSS 3.1

8.1 high
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.4% estimated probability of exploitation activity in the next 30 days; 31st percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-134 Use of Externally-Controlled Format String
Published
Modified
Assigned by
fortinet (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
Fortinet FortiMailfrom 8.0.0 through 8.0.1

Attack patterns (CAPEC)

  • CAPEC-67 String Format Overflow in syslog() Likelihood: High · Severity: Very High
  • CAPEC-135 Format String Injection Likelihood: High · Severity: High

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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