Heap-based buffer overflow in the CRpcIoManagerServer::BuildContext function in msdtcprx.dll for Microsoft Distributed Transaction Coordinat
Heap-based buffer overflow in the CRpcIoManagerServer::BuildContext function in msdtcprx.dll for Microsoft Distributed Transaction Coordinator (MSDTC) for Windows NT 4.0 and Windows 2000 SP2 and SP3 allows remote attackers to execute arbitrary code via a long fifth argument to the BuildContextW or BuildContext opcode, which triggers a bug in the NdrAllocate function, aka the MSDTC Invalid Memory Access Vulnerability.
- Published
- May 9, 2006
- Updated
- Jun 16, 2026
- EPSS
- 31.4% · 98th percentile
- CWE
- CWE-119
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Report tools
Action score
39
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 9 / 30 · 31.4%
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| microsoft | distributed transaction coordinator | cpe:2.3:a:microsoft:distributed_transaction_coordinator |
| microsoft | windows 2000 | cpe:2.3:o:microsoft:windows_2000 |
| microsoft | windows 2003 server | cpe:2.3:o:microsoft:windows_2003_server |
| microsoft | windows nt | cpe:2.3:o:microsoft:windows_nt |
| microsoft | windows xp | cpe:2.3:o:microsoft:windows_xp |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- microsoft distributed transaction coordinatorall versions
- microsoft windows 2000all versions
- microsoft windows 2003 serverenterprise
- microsoft windows 2003 serverenterprise_64-bit
- microsoft windows 2003 serverr2
- microsoft windows 2003 serverstandard
- microsoft windows 2003 serverweb
- microsoft windows nt4.0
- microsoft windows xpall versions
Same product
microsoft: all recordsOther highest-scoring records for the same primary product.
- CVE-2006-1184Microsoft Distributed Transaction Coordinator (MSDTC) for Windows NT 4.0, 2000 SP4, XP SP1 and SP2, and Server 2003 allows remote attackers 29Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- P · data can be read
- Integrity
- P · data or configuration can be modified
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- P
- Integrity impact
- P
- Availability impact
- P
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- archives.neohapsis.com/archives/fulldisclosure/2006-05/0238.html
- archives.neohapsis.com/archives/fulldisclosure/2006-05/0269.html
- secunia.com/advisories/20000
- securityreason.com/securityalert/863
- securitytracker.com/id?1016047
- www.eeye.com/html/research/advisories/AD20060509a.html
- www.osvdb.org/25335
- www.securityfocus.com/archive/1/433430/100/0/threaded
- www.securityfocus.com/archive/1/433677/100/0/threaded
- www.securityfocus.com/bid/17906
- www.vupen.com/english/advisories/2006/1742
- docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-018
- exchange.xforce.ibmcloud.com/vulnerabilities/25559
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1222
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1477
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1908
Vendor advisories and official records. Exploit/PoC links are deliberately left out.