CVE-2012-1891: microsoft data_access_components
CVSS: 9.8v3.1CriticalModified
Published 10-07-2012Last modified 17-10-2024
Vulnerability summary
CVE-2012-1891 is a critical (CVSS 9.8) vulnerability in microsoft data_access_components. EPSS estimates a 29.41% chance of exploitation in the next 30 days, higher than 98.1% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
29.41%
0%100%
High · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 10-07-2012PublishedVulnerability first disclosed.
- 17-10-2024Last modifiedVulnerability information updated.
Description
Heap-based buffer overflow in Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2 and Windows Data Access Components (WDAC) 6.0 allows remote attackers to execute arbitrary code via crafted XML data that triggers access to an uninitialized object in memory, aka "ADO Cachesize Heap Overflow RCE Vulnerability."
CVSS metrics
3 scores · 2 sources · 2 versionsCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 9.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
29.41%
Chance of exploitation in the next 30 days
Percentile
98%
Versus all other CVEs
30-day change
0.00 pp
From 29.41% on 19-09-2026
19-09-202619-10-2026
EPSS score29.41%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
- CWE-908Use of Uninitialized ResourceThe product uses or accesses a resource that has not been initialized.
Affected systems
Microsoft2 products
- data_access_components2.8:sp1 | 2.8:sp2
- windows_data_access_components6.0
1 vendor · 2 products
References
3 links- www.us-cert.gov/cas/techalerts/TA12-192A.htmlThird Party AdvisoryX Refsource CERTUS Government Resource
- docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-045Vendor AdvisoryX Refsource MS
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14783VDB EntrySignatureX Refsource OVAL