CVE-2021-26109
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track*
*SSVC
Descriptions
An integer overflow or wraparound vulnerability in the memory allocator of SSLVPN in FortiOS before 7.0.1 may allow an unauthenticated attacker to corrupt control data on the heap via specifically crafted requests to SSLVPN, resulting in potentially arbitrary code execution.
Una vulnerabilidad de desbordamiento de enteros o wraparound en el asignador de memoria de SSLVPN en FortiOS versiones anteriores a 7.0.1, puede permitir a un atacante no autenticado corromper los datos de control en el montón por medio de peticiones específicamente diseñadas a SSLVPN, resultando en una ejecución de código potencialmente arbitraria
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track*
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-01-25 CVE Reserved
- 2021-12-08 CVE Published
- 2024-08-23 EPSS Updated
- 2024-10-25 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-190: Integer Overflow or Wraparound
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://fortiguard.com/advisory/FG-IR-21-049 | 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" | Fortios Search vendor "Fortinet" for product "Fortios" | >= 6.0.0 <= 6.0.12 Search vendor "Fortinet" for product "Fortios" and version " >= 6.0.0 <= 6.0.12" | - |
Affected
| ||||||
| Fortinet Search vendor "Fortinet" | Fortios Search vendor "Fortinet" for product "Fortios" | >= 6.2.0 <= 6.2.9 Search vendor "Fortinet" for product "Fortios" and version " >= 6.2.0 <= 6.2.9" | - |
Affected
| ||||||
| Fortinet Search vendor "Fortinet" | Fortios Search vendor "Fortinet" for product "Fortios" | >= 6.4.0 <= 6.4.5 Search vendor "Fortinet" for product "Fortios" and version " >= 6.4.0 <= 6.4.5" | - |
Affected
| ||||||
| Fortinet Search vendor "Fortinet" | Fortios Search vendor "Fortinet" for product "Fortios" | 7.0.0 Search vendor "Fortinet" for product "Fortios" and version "7.0.0" | - |
Affected
| ||||||