THREATPORT/VULNERABILITY/CVE-2012-1891
CRITICAL SEVERITY

CVE-2012-1891

Data Access Components vulnerability

CVSS
9.8
EPSS
29.4%
EPSS pct
98th
Exploited
No known
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."
Affected vendor
Microsoft
Affected product
Data Access Components
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
  • CWE-908 — Use of Uninitialized Resource
Published
2012-07-10

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 29.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2012-1891

  • Confirm whether Microsoft Data Access Components is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2012-1891.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2012-1891

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2012-1891 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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