CVE-2020-26970

2020-12-0900:26:43

mozilla

www.cve.org

thunderbird

smtp

vulnerability

cve-2020-26970

stack corruption

exploit

processor architecture

AI Score

8.4

Confidence

High

EPSS

0.002

Percentile

55.8%

JSON

When reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack that is intended to contain just one byte. Depending on processor architecture and stack layout, this leads to stack corruption that may be exploitable. This vulnerability affects Thunderbird < 78.5.1.

CNA Affected

[
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "affected",
        "version": "< 78.5.1"
      }
    ]
  }
]