Microsoft XML Core Services 3.0, 4.0, 5.0, and 6.0 accesses uninitialized memory locations, which allows remote attackers to execute arbitra
Affects systems with Microsoft XML Core Services 3.0, 4.0, 5.0, or 6.0 installed when a user views a specially crafted webpage in Internet Explorer. No vendor rating or fix is listed in the supplied facts.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Microsoft XML Core Services, a component used for processing XML data, is affected by this vulnerability. An attacker could exploit it by tricking a user into visiting a specially crafted website, potentially allowing arbitrary code execution or causing the system to crash.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original 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.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- n/a n/a
Version range not reported
References 5
technet.microsoft.com
oval.cisecurity.org
docs.microsoft.com
Questions about CVE-2012-1889
What does this mean?
The component reads memory locations that were never initialized. The facts say this lets a remote attacker run arbitrary code in the context of a user who views a crafted webpage.Source: learn.microsoft.com
Am I affected, and how do I check?
The facts name Microsoft XML Core Services 3.0, 4.0, 5.0, and 6.0, and say the advisory lists the affected editions. Compare the installed XML Core Services version with that edition list in the advisory.Source: learn.microsoft.com
What should I do about it?
The supplied facts do not name a fixed version or update. Check the vendor advisory for the update that applies to the installed edition.Source: learn.microsoft.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-06-08, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data
What if there's no patch?
The supplied facts do not describe a workaround or mitigation. The only trigger they describe is viewing a specially crafted webpage in Internet Explorer, so check the advisory for any stated mitigation.Source: learn.microsoft.com