CVE-2025-1020CWE-787

CVE-2025-1020

Critical · published February 4, 2025

CVSS v3.1
9.8
EPSS
1%
Percentile
44.6
In the wild
Unconfirmed
What it is

🔥 Memory safety bugs? More like a recipe for disaster! Recent findings in Firefox 134 and Thunderbird 134 could lead to arbitrary code execution if left unchecked! ⚡ Think of it like a restaurant that serves meals with a side of mystery meat — you never know what could go wrong if it's not cooked properly! These bugs let attackers slip in unexpected ingredients, potentially compromising your system's security. If exploited, an attacker could gain complete control of your system — reading sensitive data, tampering with files, or even deploying malware. The stakes are high, and the potential for chaos is absolutely devastating!

Put simply

Think of it like a restaurant that serves meals with a side of mystery meat — you never know what could go wrong if it's not cooked properly! These bugs let attackers slip in unexpected ingredients, potentially compromising your system's security. These memory safety bugs in Firefox and Thunderbird can lead to memory corruption, allowing attackers to manipulate memory allocations and potentially run malicious code.

What to do

If exploited, an attacker could gain complete control of your system — reading sensitive data, tampering with files, or even deploying malware. The stakes are high, and the potential for chaos is absolutely devastating! Immediately upgrade to Firefox 135 and Thunderbird 135 to patch these vulnerabilities. Regularly check for updates and consider implementing additional security measures like restricted permissions for browser processes. You've got this! Stay proactive about security, and with these steps, you can keep your system safe and sound! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00540 · 44.6th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2025-02-04T19:15Z
Affected products (2)
ProductVersionsFixed in
mozilla/firefox< 135.0135.0
mozilla/thunderbird≥ 131.0, < 135.0135.0
References (3)
EPSS history
Timeline
  • 04 FEB 13:58Z
    Memory safety bugs fixed in Firefox 135 and Thunderbird 135
    cvelistv5