CVE-2021-29952

2021-06-2413:18:33

mozilla

www.cve.org

web render

race condition

vulnerability

firefox

android

arbitrary code

AI Score

7.2

Confidence

High

EPSS

0.002

Percentile

60.1%

JSON

When Web Render components were destructed, a race condition could have caused undefined behavior, and we presume that with enough effort may have been exploitable to run arbitrary code. This vulnerability affects Firefox < 88.0.1 and Firefox for Android < 88.1.3.

CNA Affected

[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "88.0.1",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Firefox for Android",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "88.1.3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]