CVE-2021-29977

2021-08-0519:46:01

mozilla

www.cve.org

9.2 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

65.5%

JSON

Mozilla developers reported memory safety bugs present in Firefox 89. 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 < 90.

CNA Affected

[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "90",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]