CVE-2021-26090
First published: Mon Jul 12 2021(Updated: )
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.
Credit: psirt@fortinet.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fortinet FortiMail | >=6.2.0<=6.2.6 | |
| Fortinet FortiMail | >=6.4.0<6.4.5 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-26090?
CVE-2021-26090 is a vulnerability found in the Webmail of FortiMail 6.4.0 through 6.4.4 and 6.2.0 through 6.2.6 that allows an unauthenticated remote attacker to exhaust available memory via specifically crafted login requests.
What is the severity of CVE-2021-26090?
The severity of CVE-2021-26090 is high.
How does CVE-2021-26090 affect FortiMail?
CVE-2021-26090 affects FortiMail 6.4.0 through 6.4.4 and 6.2.0 through 6.2.6.
How can an attacker exploit CVE-2021-26090?
An unauthenticated remote attacker can exploit CVE-2021-26090 by sending specifically crafted login requests to the Webmail of FortiMail.
Is there a fix for CVE-2021-26090?
Yes, it is recommended to update FortiMail to version 6.4.5 or above to fix CVE-2021-26090.
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- agent/weakness
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- vendor/fortinet
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- version/fortinet fortimail/6.2.0
- version/fortinet fortimail/6.2.6
- version/fortinet fortimail/6.4.0