CVE-2021-23997

2021-06-2413:25:34

mozilla

www.cve.org

8.4 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

55.8%

JSON

Due to unexpected data type conversions, a use-after-free could have occurred when interacting with the font cache. We presume that with enough effort this 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"
      }
    ]
  }
]