CVE-2023-5730

Memory safety bugs present in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3

published October 24, 2023

CVSS
—
EPSS
2%
Percentile
76.1
In the wild
Unconfirmed
What it is

⚠️ Memory safety issues are lurking in Firefox and Thunderbird! These bugs in versions 118 and below could potentially allow some unsavory code to run if given the right push. 💥 Think of it like a clumsy waiter who keeps spilling drinks all over the restaurant—each spill is a chance for something messy to happen, and if they don’t clean it up, something might just break! If exploited, an attacker could inject their own code, compromising user data or even taking control of the affected browser or email client. This could lead to catastrophic data breaches or a severe loss of privacy, making it crucial to address. 💻

Put simply

Think of it like a clumsy waiter who keeps spilling drinks all over the restaurant—each spill is a chance for something messy to happen, and if they don’t clean it up, something might just break! The vulnerability involves memory safety bugs in Firefox and Thunderbird, which could lead to memory corruption under certain conditions. While there’s no confirmed exploit yet, the potential is there for remote code execution if enough effort is applied.

What to do

If exploited, an attacker could inject their own code, compromising user data or even taking control of the affected browser or email client. This could lead to catastrophic data breaches or a severe loss of privacy, making it crucial to address. 💻 Upgrade to Firefox version 119 or Firefox ESR 115.4 to patch these issues. Similarly, ensure Thunderbird is updated to version 115.4.1 to bolster its defenses against potential exploitation. 🛡️ You've got this! Keep your software updated, and you'll be a security hero in no time! 🚀

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01632 · 76.1th percentile
Published
2023-10-24T12:47Z
EPSS history
Timeline
  • 24 OCT 12:47Z
    Memory safety bugs present in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3
    cvelistv5