Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2012-1889

97
FAUCET Score

CVE-2012-1889 is a critical uninitialized memory vulnerability affecting Microsoft XML Core Services versions 3.0, 4.0, 5.0, and 6.0. This flaw allows remote attackers to execute arbitrary code or cause a denial of service by tricking users into visiting a crafted website. With a CVSS score of 8.8 (High), it presents a significant risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. This vulnerability has been actively exploited in the wild, with public Metasploit modules available and extensive community discussion and media coverage, indicating its widespread recognition and use by threat actors.

Impacted Technologies

VendorProductVersion(s)CPE
3.0CPE matchmatch criteria
cpe:2.3:a:microsoft:xml_core_services:3.0:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:microsoft:xml_core_services:4.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:a:microsoft:xml_core_services:6.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:microsoft:xml_core_services:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
83.64%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Added to KEV · Jun 8, 2022
Metasploit: MS12-043 Microsoft XML Core Services MSXML Uninitialized Memory Corruption · Jun 12, 2012
ExploitDB: EDB-19186 · Jun 16, 2012
This CVE's current EPSS score of 0.8364 is in the 100th percentile among its peer group of 14,825 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
docs.microsoft.com / en-us/security-updates/securitybulletins/2012/ms12-043
PatchVendor Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15195
Broken Link
technet.microsoft.com / security/advisory/2719615
Vendor Advisory
us-cert.gov / cas/techalerts/TA12-174A.html
Third Party AdvisoryUS Government Resource
us-cert.gov / cas/techalerts/TA12-192A.html
Third Party AdvisoryUS Government Resource