CVE-2020-12395

Mozilla developers and community members reported memory safety bugs present in Firefox 75 and Firefox ESR 68.7

published May 26, 2020

CVSS
—
EPSS
3%
Percentile
85.2
In the wild
Unconfirmed
What it is

⚠️ Some memory safety bugs are lurking in Firefox and Thunderbird! While they aren't exploited in the wild yet, they could potentially lead to running arbitrary code with enough effort. 🔥 Think of these memory safety bugs like a boiler room with a few faulty pipes — they might not be leaking right now, but if left unchecked, they could burst and cause a flood of issues! If an attacker successfully exploits one of these bugs, they could gain the ability to execute arbitrary code, which could mean anything from stealing sensitive information to taking control of your system. That's a real nightmare scenario! 🥵

Put simply

Think of these memory safety bugs like a boiler room with a few faulty pipes — they might not be leaking right now, but if left unchecked, they could burst and cause a flood of issues! The vulnerability arises from memory corruption issues present in Firefox versions 75 and ESR 68.7, as well as Thunderbird below 68.8.0. These flaws could potentially allow an attacker to exploit the memory management errors to run malicious code.

What to do

If an attacker successfully exploits one of these bugs, they could gain the ability to execute arbitrary code, which could mean anything from stealing sensitive information to taking control of your system. That's a real nightmare scenario! 🥵 To stay safe, upgrade Firefox to version 76 or later, and ensure Thunderbird is updated to at least version 68.8.0. Regularly check for updates and patch vulnerabilities to keep your software secure! 🛡️ You've got this! Follow these steps, and you'll have a safer browsing experience in no time! 💪

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02597 · 85.2th percentile
Published
2020-05-26T16:58Z
EPSS history
Timeline
  • 26 MAY 16:58Z
    Mozilla developers and community members reported memory safety bugs present in Firefox 75 and Firefox ESR 68.7
    cvelistv5