MEDIUM
The RPC component in Windows 2000, Windows NT 4.0, and Windows XP allows remote attackers to cause a denial of service (disabled RPC service) via a malformed packet to the RPC Endpoint Mapper at TCP port 135, which triggers a null pointer dereference
Published Mar 26, 2003
5.0
MEDIUMCVSS 2.0
EPSS 37.73%
Description
The RPC component in Windows 2000, Windows NT 4.0, and Windows XP allows remote attackers to cause a denial of service (disabled RPC service) via a malformed packet to the RPC Endpoint Mapper at TCP port 135, which triggers a null pointer dereference.
Affected products
No data.
OR
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- 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
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- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- n/a
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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.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
37.73% 0.37730
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.37730
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 (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 37.73% (0.37730) | 98.50th | v5 (v2026.06.15) |
| Jul 20, 2026 | 38.00% (0.38004) | 98.39th | v5 (v2026.06.15) |
| Jun 20, 2026 | 42.63% (0.42633) | 98.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 38.00% (0.38004) | 98.36th | v5 (v2026.06.15) |
| Dec 28, 2025 | 62.40% (0.62404) | 98.28th | v4 (v2025.03.14) |
| Dec 27, 2025 | 64.34% (0.64343) | 98.38th | v4 (v2025.03.14) |
| Nov 5, 2025 | 62.40% (0.62404) | 98.27th | v4 (v2025.03.14) |
| Oct 28, 2025 | 58.60% (0.58603) | 98.09th | v4 (v2025.03.14) |
| Oct 27, 2025 | 60.67% (0.60671) | 98.20th | v4 (v2025.03.14) |
| Oct 23, 2025 | 58.60% (0.58603) | 98.09th | v4 (v2025.03.14) |
| Oct 1, 2025 | 66.11% (0.66107) | 98.47th | v4 (v2025.03.14) |
| May 29, 2025 | 60.67% (0.60671) | 98.16th | v4 (v2025.03.14) |
| Mar 30, 2025 | 58.24% (0.58243) | 98.01th | v4 (v2025.03.14) |
| Mar 29, 2025 | 73.44% (0.73444) | 98.43th | v4 (v2025.03.14) |
| Mar 17, 2025 | 58.58% (0.58580) | 97.99th | v4 (v2025.03.14) |
| Dec 17, 2024 | 82.06% (0.82061) | 98.61th | v3 (v2023.03.01) |
| Aug 3, 2024 | 44.83% (0.44831) | 97.41th | v3 (v2023.03.01) |
| Jan 22, 2024 | 56.30% (0.56300) | 97.39th | v3 (v2023.03.01) |
| Sep 4, 2023 | 59.36% (0.59355) | 97.32th | v3 (v2023.03.01) |
| Apr 10, 2023 | 69.28% (0.69282) | 97.44th | v3 (v2023.03.01) |
| Mar 7, 2023 | 70.90% (0.70896) | 97.44th | v3 (v2023.03.01) |
| Mar 6, 2023 | 24.73% (0.24729) | 96.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 24.73% (0.24729) | 95.30th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (5)
- http://www.kb.cert.org/vuls/id/261537 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.securityfocus.com/archive/1/296114/2002-10-14/2002-10-20/0 mailing-listx_refsource_BUGTRAQVendor Advisory
- http://www.securityfocus.com/bid/6005 vdb-entryx_refsource_BIDExploitPatchVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-010 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A59 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://www.kb.cert.org/vuls/id/261537 | third-party-advisoryx_refsource_CERT-VNUS Government Resource | |
| http://www.securityfocus.com/archive/1/296114/2002-10-14/2002-10-20/0 | mailing-listx_refsource_BUGTRAQVendor Advisory | |
| http://www.securityfocus.com/bid/6005 | vdb-entryx_refsource_BIDExploitPatchVendor Advisory | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-010 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A59 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Mar 26, 2003
Updated Aug 8, 2024
Reserved Mar 24, 2003
Link CVE-2002-1561
CISA Vulnrichment
Updated n/a