CVE-2012-1891

Heap-based buffer overflow in Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2 and Windows Data Access Components (WDAC) 6.0 allows remote attackers to…

Critical · published July 10, 2012

CVSS v3.1
9.8
EPSS
29%
Percentile
98.2
In the wild
Unconfirmed
What it is

🚨 A crafted XML file could turn your server into an attacker's playground! The heap overflow vulnerability in Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2 allows remote code execution just by sending some sneaky data. 🔥 Think of it like a restaurant that has a secret entry point — an unsuspecting diner could slip in without anyone noticing, creating chaos in the kitchen. Here, the exploit allows an attacker to access unguarded memory space and run wild with it! If exploited, an attacker could execute arbitrary code on affected systems, potentially leading to data breaches, system corruption, or even complete control over the server. This is absolutely devastating for any organization, as it could compromise sensitive data and trust. ⚠️

Put simply

Think of it like a restaurant that has a secret entry point — an unsuspecting diner could slip in without anyone noticing, creating chaos in the kitchen. Here, the exploit allows an attacker to access unguarded memory space and run wild with it! This heap-based buffer overflow occurs when the application tries to access an uninitialized object in memory triggered by specially crafted XML data. This vulnerability enables an attacker to manipulate memory allocation and execute unintended code.

What to do

If exploited, an attacker could execute arbitrary code on affected systems, potentially leading to data breaches, system corruption, or even complete control over the server. This is absolutely devastating for any organization, as it could compromise sensitive data and trust. ⚠️ Ensure your systems are updated immediately to versions free of this vulnerability. Specifically, if you're using MDAC 2.8 SP1 or SP2, consider upgrading to the latest supported version or applying relevant security patches. Implementing security best practices like input validation can also provide an additional layer of protection. You've got this! By taking these steps, you can stay safe and keep your systems secure! 🛡️

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
0.29406 · 98.2th percentile
Published
2012-07-10T21:00Z
EPSS history
Timeline
  • 10 JUL 21:00Z
    Heap-based buffer overflow in Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2 and Windows Data Access Components (WDAC) 6.0 allows remote attackers to…
    cvelistv5