Microsoft · XML Core Services
CVE-2012-1889
Microsoft XML Core Services Memory Corruption Vulnerability
Exploited in attacks
High 8.8 Attack chance: 84%
What it is
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: Microsoft XML Core Services contains a memory corruption vulnerability which could allow for remote code execution.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: June 22, 2022
- Added to the CISA list
- June 8, 2022
- Published
- June 13, 2012
- Severity
- High 8.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 84% in the top 0.3% of all known vulnerabilities
- Weakness
- CWE-119
- More details
- NVD · CVE.org · CISA
All references (5)
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-043
- http://www.us-cert.gov/cas/techalerts/TA12-192A.html
- http://technet.microsoft.com/security/advisory/2719615
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15195
- http://www.us-cert.gov/cas/techalerts/TA12-174A.html
More exploited flaws from Microsoft
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| May 24, 2022 | Information Disclosure | XML Core Services | Medium 6.5 | 18% |
| Oct 13, 2026 | Command Injection | Windows | High 8.8 | 9.8% |
| Sep 25, 2026 | Code Injection | SharePoint | High 8.8 | 8.2% |
| Sep 8, 2026 | Link Following | Windows | High 7.8 | 0.4% |
| Sep 8, 2026 | Heap-Based Buffer Overflow | Windows | High 7.8 | 0.4% |
| Aug 26, 2026 | Remote Code Execution | SQL Server | High 8.8 | 57% |
| Aug 18, 2026 | Double Free | Internet Key Exchange (IKE) Service Extensions | Critical 9.8 | 77% |
| Aug 18, 2026 | Weak Authentication | SharePoint | Critical 9.1 | 70% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.