CVE-2021-26090

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

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.

Una vulnerabilidad de falta de liberación de memoria después de su vida útil en el Webmail de FortiMail versiones 6.4.0 hasta 6.4.4 y versiones 6.2.0 hasta 6.2.6, puede permitir a un atacante remoto no autenticado agotar la memoria disponible por medio de peticiones de inicio de sesión específicamente diseñadas

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2021-01-25 CVE Reserved
2021-07-12 CVE Published
2024-03-27 EPSS Updated
2024-10-25 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-401: Missing Release of Memory after Effective Lifetime

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://fortiguard.com/advisory/FG-IR-21-042	2021-07-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Fortinet Search vendor "Fortinet"		Fortimail Search vendor "Fortinet" for product "Fortimail"				>= 6.2.0 <= 6.2.6 Search vendor "Fortinet" for product "Fortimail" and version " >= 6.2.0 <= 6.2.6"		-		Affected
Fortinet Search vendor "Fortinet"		Fortimail Search vendor "Fortinet" for product "Fortimail"				>= 6.4.0 < 6.4.5 Search vendor "Fortinet" for product "Fortimail" and version " >= 6.4.0 < 6.4.5"		-		Affected