CVE-2021-21806

2021-07-0811:06:47

talos

www.cve.org

use-after-free

webkitgtk

remote code execution

malicious web page

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

Confidence

High

EPSS

0.004

Percentile

72.8%

JSON

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.

CNA Affected

[
  {
    "product": "Webkit",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Webkit WebKitGTK 2.30.3"
      }
    ]
  }
]