CVE-2012-1889

HIGHNVD 8.89.0▲Trending — 4 sources updated this weekExploited in the wild

8.8

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.

CVSS v3: 8.8
EG Score: 9.0(high)
EPSS: 99.8%
KEV: ⚠ Exploited

Published

June 13, 2012

Last Modified

April 22, 2026

Advisory Details (1)

Auto-updated May 2, 2026

No patch confirmed yet.

generic

Microsoft Security Bulletin MS12-043 - Critical | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-043

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-03 17:12 UTCEG score recompute
2026-06-03 17:12 UTCGHSA enrichment
2026-06-03 12:53 UTCEG score recompute
2026-06-03 12:53 UTCGHSA enrichment
2026-06-03 08:34 UTCEG score recompute
2026-06-03 08:34 UTCGHSA enrichment
2026-06-03 04:15 UTCEG score recompute
2026-06-03 04:15 UTCGHSA enrichment
2026-06-02 23:56 UTCEG score recompute
2026-06-02 23:56 UTCGHSA enrichment
2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-02 19:38 UTCEG score recompute
2026-06-02 19:38 UTCGHSA enrichment
2026-06-02 18:32 UTCkev_newly_listed
2026-06-02 15:20 UTCEG score recompute
2026-06-02 15:20 UTCGHSA enrichment
2026-06-02 11:01 UTCEG score recompute
2026-06-02 11:01 UTCGHSA enrichment
2026-06-02 06:43 UTCEG score recompute

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (1 GitHub PoC) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

GitHub PoCwhu-enjoy/CVE-2012-1889
First seen Sep 25, 2016
这里保存着我学习CVE-2012-1889这个漏洞的利用所用到的文件
Open source ↗
Exploit-DBEDB-19186✓ verified
First seen Jun 16, 2012
Microsoft XML Core Services - MSXML Uninitialized Memory Corruption (MS12-043) (Metasploit)
Open source ↗
Metasploitexploit/windows/browser/msxml_get_definition_code_exec✓ verified
First seen Jun 12, 2012
MS12-043 Microsoft XML Core Services MSXML Uninitialized Memory Corruption
Open source ↗

Frequently asked(6)

What is CVE-2012-1889?

CVE-2012-1889 is a high vulnerability published on June 13, 2012. 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.

When was CVE-2012-1889 disclosed?

CVE-2012-1889 was first published in the National Vulnerability Database on June 13, 2012, with the most recent update on April 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2012-1889 actively exploited?

Yes. CISA added CVE-2012-1889 to the Known Exploited Vulnerabilities catalog on June 8, 2022, affecting Microsoft XML Core Services. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2012-1889?

CVE-2012-1889 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.

Which products are affected by CVE-2012-1889?

CVE-2012-1889 affects Microsoft XML Core Services. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2012-1889?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-1889, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2012-1889

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Is Your Infrastructure Affected by CVE-2012-1889?

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CVE-2012-1889

📅 Published

🔄 Last Modified

📋 Advisory Details (1)