// For flags

CVE-2021-21806

webkitgtk: Use-after-free in fireEventListeners leading to arbitrary code execution

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.

Se presenta una vulnerabilidad explotable de uso de la memoria previamente liberada en el navegador WebKitGTK versión 2.30.3 x64. Una página web HTML especialmente diseñada puede causar una condición de uso de memoria previamente liberada, resultando en una ejecución de código remota. La víctima necesita visitar un sitio web malicioso para desencadenar la vulnerabilidad

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-04 CVE Reserved
  • 2021-07-08 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • 2024-11-10 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Webkitgtk
Search vendor "Webkitgtk"
 Webkitgtk
Search vendor "Webkitgtk" for product "Webkitgtk"
 2.30.3
Search vendor "Webkitgtk" for product "Webkitgtk" and version "2.30.3"
x64
Affected