CVE-2021-41027

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A stack-based buffer overflow in Fortinet FortiWeb version 6.4.1 and 6.4.0, allows an authenticated attacker to execute unauthorized code or commands via crafted certificates loaded into the device.

Un desbordamiento del búfer en la región stack de la memoria en Fortinet FortiWeb versiones 6.4.1 y 6.4.0, permite a un atacante autenticado ejecutar código o comandos no autorizados por medio de certificados diseñados cargados en el dispositivo

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-09-13 CVE Reserved
2021-12-08 CVE Published
2023-07-01 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://fortiguard.com/advisory/FG-IR-21-134	2021-12-09

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Fortinet Search vendor "Fortinet"		Fortiweb Search vendor "Fortinet" for product "Fortiweb"				6.4.0 Search vendor "Fortinet" for product "Fortiweb" and version "6.4.0"		-		Affected
Fortinet Search vendor "Fortinet"		Fortiweb Search vendor "Fortinet" for product "Fortiweb"				6.4.1 Search vendor "Fortinet" for product "Fortiweb" and version "6.4.1"		-		Affected