CVE-2021-29947

2021-06-2413:19:37

mozilla

www.cve.org

memory safety

firefox 87

arbitrary code execution

vulnerability

AI Score

9.2

Confidence

High

EPSS

0.003

Percentile

68.3%

JSON

Mozilla developers and community members reported memory safety bugs present in Firefox 87. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88.

CNA Affected

[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "88",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]