CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2026-126149 fortinet fortimail: Year 2038 problem, Y2K38, Y2038, Epochalypse
High (7.5) in fortinet fortimail. EPSS 0.5% estimated probability of exploitation activity in the next 30 days.
On this page
A integer overflow or wraparound 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 a remote unauthenticated attacker to crash the daemon.
Severity
- EPSS
- 0.5% estimated probability of exploitation activity in the next 30 days; 46th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CWE
- CWE-190 Integer Overflow or Wraparound (Year 2038 problem, Y2K38, Y2038, Epochalypse)
- Published
- Modified
- Assigned by
- fortinet (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
Ask an AI about this CVE
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Explain CVE-2026-126149 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-126149?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-126149?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-126149 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
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Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Fortinet FortiMail | from 8.0.0 through 8.0.1 |
| Fortinet FortiMail | from 7.6.0 through 7.6.6 |
| Fortinet FortiMail | from 7.4.0 through 7.4.8 |
| Fortinet FortiMail | from 7.2.0 through 7.2.9 |
| Fortinet FortiMail | from 7.0.0 through 7.0.9 |
Attack patterns (CAPEC)
- CAPEC-92 Forced Integer Overflow Likelihood: High · Severity: High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.