CVE-2021-26090
Last modified
CVE-2021-26090 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A missing release of memory after its effective lifetime vulnerability in the Webmail of FortiMail 6.4.0 through 6.4.4 and 6.2.0 through 6.2.6 may allow an unauthenticated remote attacker to exhaust available memory via specifically crafted login requests.. EPSS estimates a 1.33% chance of exploitation in the next 30 days.
Description
A missing release of memory after its effective lifetime vulnerability in the Webmail of FortiMail 6.4.0 through 6.4.4 and 6.2.0 through 6.2.6 may allow an unauthenticated remote attacker to exhaust available memory via specifically crafted login requests.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | Fortimail | >= 6.2.0, <= 6.2.6 |
| Fortinet | Fortimail | >= 6.4.0, < 6.4.5 |
References
- https://fortiguard.com/advisory/FG-IR-21-042Vendor Advisory
- https://fortiguard.com/advisory/FG-IR-21-042Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-26090?
How severe is CVE-2021-26090?
How do I fix CVE-2021-26090?
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 2021
- CVE-2021-26084In affected versions of Confluence Server and Data Center, a…9.8
- CVE-2021-26085Affected versions of Atlassian Confluence Server allow remot…5.3
- CVE-2021-26086Affected versions of Atlassian Jira Server and Data Center a…5.3
- CVE-2021-26087An improper neutralization of input during web page generati…6.1
- CVE-2021-26088An improper authentication vulnerability in FSSO Collector v…9.6
- CVE-2021-26089An improper symlink following in FortiClient for Mac 6.4.3 a…7.8
- CVE-2021-26091A use of a cryptographically weak pseudo-random number gener…7.5
- CVE-2021-26092Failure to sanitize input in the SSL VPN web portal of Forti…6.1
- CVE-2021-26093An access of uninitialized pointer (CWE-824) vulnerability i…6.5
- CVE-2021-26095The combination of various cryptographic issues in the sessi…8.8
- CVE-2021-26096Multiple instances of heap-based buffer overflow in the comm…8.8
- CVE-2021-26097An improper neutralization of special elements used in an OS…8.8
Are you affected by CVE-2021-26090?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
