CVE-2012-1889KEV · OVERDUE

Microsoft XML Core Services Memory Corruption Vulnerability

High · published June 13, 2012

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 8.8. It is confirmed in active exploitation. It sits in the 99.7th percentile for exploit probability.

1583
days past CISA
deadline
CVSS v3.1
8.8
EPSS
84%
Percentile
99.7
In the wild
Confirmed
What it is

🚨 A crafty website can send you spiraling into uncharted memory territory! With Microsoft XML Core Services 3.0-6.0, attackers can exploit uninitialized memory locations to execute arbitrary code. 🔥 Think of it as a restaurant serving meals from a new, unapproved recipe. If the kitchen uses ingredients that weren't prepped properly, diners could get sick when they eat! In this case, the hazardous recipe allows attackers to exploit memory in ways that can lead to chaos. An attacker could execute dangerous code, potentially taking over your system or causing a total denial of service—imagine the restaurant suddenly shutting down during peak hours! The risk is significant, as this vulnerability has been actively exploited in the wild, leaving systems wide open for trouble.

Put simply

Think of it as a restaurant serving meals from a new, unapproved recipe. If the kitchen uses ingredients that weren't prepped properly, diners could get sick when they eat! In this case, the hazardous recipe allows attackers to exploit memory in ways that can lead to chaos. This vulnerability arises when Microsoft XML Core Services accesses uninitialized memory, allowing attackers to manipulate the system's behavior with crafted input, leading to memory corruption and unauthorized code execution.

What to do

An attacker could execute dangerous code, potentially taking over your system or causing a total denial of service—imagine the restaurant suddenly shutting down during peak hours! The risk is significant, as this vulnerability has been actively exploited in the wild, leaving systems wide open for trouble. To mitigate this threat, patch your systems immediately to the latest updates for Microsoft XML Core Services. Ensure all systems are running the latest versions and implement strong security measures against malicious websites. You've got this! Stay ahead of the game, patch those systems, and keep your environment secure! 🛡️

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.83516 · 99.7th percentile
Published
2012-06-13T01:00Z
KEV added
2022-06-08 · due 2022-06-22
EPSS history
Timeline
  • 08 JUN 00:00Z
    Added to CISA KEV — remediate by Jun 22
    kev
  • 13 JUN 01:00Z
    Microsoft XML Core Services 3.0, 4.0, 5.0, and 6.0 accesses uninitialized memory locations, which allows remote attackers to execute arbitrary code or cause a…
    cvelistv5