Buffer overflow in a certain DCOM interface for RPC in Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote attackers to execute arbitrary code via a malformed message, as exploited by the Blaster/MSblast/LovSAN and Nachi/Welchia worms
Published Jul 17, 2003
7.5
HIGHCVSS 2.0
EPSS 98.48%
Description
Buffer overflow in a certain DCOM interface for RPC in Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote attackers to execute arbitrary code via a malformed message, as exploited by the Blaster/MSblast/LovSAN and Nachi/Welchia worms.
Affected products
No data.
- n/a
- n/a
- n/a
- n/a
- n/a
- enterprise
- enterprise_64-bit
- r2
- r2
- standard
- web
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- n/a
- n/a
- n/a
- n/a
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 98.48% (0.98484) | 99.92th | v5 (v2026.06.15) |
| Jun 15, 2026 | 98.48% (0.98484) | 99.91th | v5 (v2026.06.15) |
| May 13, 2025 | 90.28% (0.90277) | 99.56th | v4 (v2025.03.14) |
| Mar 17, 2025 | 91.31% (0.91306) | 99.65th | v4 (v2025.03.14) |
| Dec 12, 2024 | 95.99% (0.95988) | 99.55th | v3 (v2023.03.01) |
| Nov 24, 2024 | 95.99% (0.95988) | 99.54th | v3 (v2023.03.01) |
| May 14, 2024 | 97.08% (0.97075) | 99.77th | v3 (v2023.03.01) |
| Dec 26, 2023 | 97.16% (0.97161) | 99.76th | v3 (v2023.03.01) |
| Aug 1, 2023 | 97.06% (0.97056) | 99.64th | v3 (v2023.03.01) |
| Jul 8, 2023 | 97.12% (0.97117) | 99.66th | v3 (v2023.03.01) |
| Mar 7, 2023 | 97.38% (0.97381) | 99.80th | v3 (v2023.03.01) |
| Mar 6, 2023 | 87.31% (0.87309) | 99.75th | v2 (v2022.01.01) |
| Feb 4, 2022 | 87.31% (0.87309) | 99.70th | v2 (v2022.01.01) |
No CWE recorded.
References (14)
- http://lists.grok.org.uk/pipermail/full-disclosure/2003-July/007079.html mailing-listx_refsource_FULLDISC
- http://lists.grok.org.uk/pipermail/full-disclosure/2003-July/007357.html mailing-listx_refsource_FULLDISC
- http://marc.info/?l=bugtraq&m=105838687731618&w=2 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=bugtraq&m=105914789527294&w=2 mailing-listx_refsource_BUGTRAQ
- http://www.cert.org/advisories/CA-2003-16.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.cert.org/advisories/CA-2003-19.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.kb.cert.org/vuls/id/568148 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.securityfocus.com/bid/8205 vdb-entryx_refsource_BIDExploitPatchVendor Advisory
- http://www.xfocus.org/documents/200307/2.html x_refsource_MISC
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-026 vendor-advisoryx_refsource_MS
- https://exchange.xforce.ibmcloud.com/vulnerabilities/12629 vdb-entryx_refsource_XF
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A194 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2343 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A296 vdb-entrysignaturex_refsource_OVAL
Change history (0)
No recorded changes yet.