CVE-2026-126154
Last modified
CVE-2026-126154 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A out-of-bounds write 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 cause a denial of service via a specially crafted HTTP request.. EPSS estimates a 0.49% chance of exploitation in the next 30 days.
Description
A out-of-bounds write 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 cause a denial of service via a specially crafted HTTP request.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | FortiMail | >= 8.0.0, <= 8.0.1; >= 7.6.0, <= 7.6.6; >= 7.4.0, <= 7.4.8; >= 7.2.0, <= 7.2.9 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-126154?
How severe is CVE-2026-126154?
How do I fix CVE-2026-126154?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-126148A improper neutralization of special elements used in an os …9.8
- CVE-2026-126149A integer overflow or wraparound vulnerability in Fortinet F…7.5
- CVE-2026-126150A weak password recovery mechanism for forgotten password vu…9.1
- CVE-2026-126151A incorrect implementation of authentication algorithm vulne…7.5
- CVE-2026-126152A authorization bypass through user-controlled key vulnerabi…7.6
- CVE-2026-126153A improper limitation of a pathname to a restricted director…7.5
- CVE-2026-126155A incorrect authorization vulnerability in Fortinet FortiMai…9.1
- CVE-2026-126156A authorization bypass through user-controlled key vulnerabi…9.1
- CVE-2026-126157A improper authentication vulnerability in Fortinet FortiMai…9.1
- CVE-2026-126158A improper neutralization of special elements used in an os …7.2
- CVE-2026-126159A authorization bypass through user-controlled key vulnerabi…7.5
- CVE-2026-12616The /v1/upload/sbom endpoint extracts the iss claim from the…6.9
Are you affected by CVE-2026-126154?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
