CVE-2012-1889

Name: CVE-2012-1889
Creator: NVD / NIST
Published: 2012-06-13T04:46:46.19+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10Actively ExploitedEPSS 83.64%

Last modified Jun 16, 2026

CVE-2012-1889 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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 denial of service (memory corruption) via a crafted web site.. CISA has confirmed active exploitation in the wild. EPSS estimates a 83.64% chance of exploitation in the next 30 days.

Description

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 denial of service (memory corruption) via a crafted web site.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

83.64%

99.7th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Jun 22, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Microsoft	Xml Core Services	3.0
Microsoft	Xml Core Services	4.0
Microsoft	Xml Core Services	6.0
Microsoft	Xml Core Services	5.0

References

http://technet.microsoft.com/security/advisory/2719615Vendor Advisory
http://www.us-cert.gov/cas/techalerts/TA12-174A.htmlThird Party Advisory, US Government Resource
http://www.us-cert.gov/cas/techalerts/TA12-192A.htmlThird Party Advisory, US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-043Patch, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15195Broken Link
http://technet.microsoft.com/security/advisory/2719615Vendor Advisory
http://www.us-cert.gov/cas/techalerts/TA12-174A.htmlThird Party Advisory, US Government Resource
http://www.us-cert.gov/cas/techalerts/TA12-192A.htmlThird Party Advisory, US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-043Patch, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15195Broken Link
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-1889US Government Resource

Timeline

Published: Jun 13, 2012
Last Modified: Jun 16, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2012-1889?

How severe is CVE-2012-1889?

CVE-2012-1889 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 83.64% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2012-1889?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2012-1889?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST