How severe is CVE-2012-1889?

CVE-2012-1889 has a CVSS 3.1 base score of 8.8 (HIGH). EPSS estimates a 83.5% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2012-1889: Microsoft XML Core Services Memory Corruption

CISA Known Exploited Vulnerabilities

Microsoft XML Core Services Memory Corruption Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-06-08

Remediation due

2022-06-22

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2012-1889

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.

Severity

CVSS 3.1 · CISA8.8 HIGH

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

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Exploitation Context

as of October 14, 2026

All KEV statistics→

CISA added CVE-2012-1889 to the KEV catalog 3,647 days after its CVE record was published.
It is one of 391 Microsoft entries in the CISA KEV catalog, and one of 166 added in 2022.
Its current EPSS score (83.5%) is higher than that of 66% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
-	-	n/a

References

5 Links

Vendor advisories

MS12-043

Third-party advisories

Vulnerability databases

oval:org.mitre.oval:def:15195

Other references

http://technet.microsoft.com/security/advisory/2719615

Record Details

Published

2012-06-13

Last updated

2025-10-22

Assigner (CNA)

microsoft

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.