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cvelistMozillaCVELIST:CVE-2023-6858
HistoryDec 19, 2023 - 1:38 p.m.

CVE-2023-6858

2023-12-1913:38:38
mozilla
www.cve.org
firefox
heap buffer overflow
vulnerability
versions
115.6
thunderbird
121

8.6 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.5%

Firefox was susceptible to a heap buffer overflow in nsTextFragment due to insufficient OOM handling. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

CNA Affected

[
  {
    "product": "Firefox ESR",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "115.6",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "115.6",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "121",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]