CVE-2012-1889
Microsoft XML Core Services Memory Corruption Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 22 June 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 83.52% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 16 June 2012
- CISA KEV
- Listed 8 June 2022 · due 22 June 2022
- Weakness
- CWE-787
- Affected
- microsoft/xml core services
- Source
- secure@microsoft.com
EPSS 83.5% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2012-1889
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.