The MIDL_user_allocate function in the Microsoft Distributed Transaction Coordinator (MSDTC) proxy (MSDTCPRX.DLL) allocates a 4K page of memory regardless of the required size, which allows attackers to overwrite arbitrary memory locations using an incorrect size value that is provided to the NdrAllocate function, which writes management data to memory outside of the allocated buffer.
CVE-2005-2119
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 5.0 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:N/I:P/A:N. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 35.5% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v2.0 (legacy)
- 5.0MEDIUMNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 5.0(low)
- EG Risk
- 53(Track)EG Risk 53/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity50% × 45%Exploitation65% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 36%
- EPSS %ILE
- 98%
- KEV
- Not listed
Published
October 12, 2005
Last Modified
April 16, 2026
References (32)
- secure@microsofthttp://secunia.com/advisories/17161
- secure@microsofthttp://secunia.com/advisories/17172
- secure@microsofthttp://secunia.com/advisories/17223
- secure@microsofthttp://secunia.com/advisories/17509
- secure@microsofthttp://securityreason.com/securityalert/73
- secure@microsofthttp://securitytracker.com/id?1015037
- secure@microsofthttp://support.avaya.com/elmodocs2/security/ASA-2005-214.pdf
- secure@microsofthttp://www.eeye.com/html/research/advisories/AD20051011b.html
- secure@microsofthttp://www.kb.cert.org/vuls/id/180868
- secure@microsofthttp://www.osvdb.org/18828
- secure@microsofthttp://www.securityfocus.com/bid/15056
- secure@microsofthttp://www.us-cert.gov/cas/techalerts/TA05-284A.html
- secure@microsofthttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-051
- secure@microsofthttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1071
- secure@microsofthttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1452
Data Freshness Timeline
(refreshed 2× in last 7d / 2× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-10 09:23 UTCEPSS rescore
- 2026-09-04 04:59 UTCEPSS rescore
- 2026-08-05 19:11 UTCEPSS rescore
- 2026-07-26 13:26 UTCEG score recompute▲ 5.00
- 2026-07-25 14:11 UTCEPSS rescore
- 2026-07-24 14:11 UTCEPSS rescore
- 2026-07-23 00:48 UTCEG score recompute
- 2026-07-23 00:28 UTCEG score recompute▼ 0.90
- 2026-07-22 23:52 UTCEG score recompute▲ 0.90
- 2026-07-22 21:32 UTCEG score recompute
- 2026-07-18 09:59 UTCEPSS rescore
- 2026-07-18 09:59 UTCEPSS rescore
- 2026-07-15 16:53 UTCEPSS rescore
- 2026-07-15 01:55 UTCEPSS rescore
- 2026-07-15 01:55 UTCEPSS rescore
- 2026-07-13 22:24 UTCEPSS rescore
- 2026-07-13 06:07 UTCEPSS rescore
- 2026-07-13 06:07 UTCEPSS rescore
- 2026-07-11 08:22 UTCEPSS rescore
- 2026-07-11 08:22 UTCEPSS rescore
- 2026-07-08 15:09 UTCEPSS rescore
- 2026-07-02 14:00 UTCEPSS rescore
- 2026-07-01 15:01 UTCEPSS rescore
- 2026-06-28 04:52 UTCEPSS rescore
- 2026-06-27 03:04 UTCEPSS rescore
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- 2026-06-25 13:46 UTCEPSS rescore
- 2026-06-24 14:01 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-13 22:56 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-11 13:55 UTCEPSS rescore
- 2026-06-10 22:14 UTCEPSS rescore
- 2026-06-10 13:17 UTCEPSS rescore
- 2026-06-08 14:13 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-06-05 22:43 UTCEPSS rescore
- 2026-06-05 22:43 UTCEPSS rescore
- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 11:59 UTCEG score recompute
- 2026-05-31 11:59 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-24 16:42 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-20 22:36 UTCEPSS rescore
- 2026-05-20 22:36 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(2 references)Working exploit code is in the public domain (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-1352✓ verifiedFirst seen Dec 1, 2005
Microsoft Windows - DTC Remote (MS05-051) (2)
Open source ↗ - Exploit-DBEDB-1341✓ verifiedFirst seen Nov 27, 2005
Microsoft Windows - MSDTC Service Remote Memory Modification (PoC) (MS05-051)
Open source ↗
Frequently asked(4)
What is CVE-2005-2119?
When was CVE-2005-2119 disclosed?
Is CVE-2005-2119 actively exploited?
How do I remediate CVE-2005-2119?
Dependency Blast Radius
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