HIGH
Buffer overflow in the ASP data transfer mechanism in Internet Information Server (IIS) 4.0, 5.0, and 5.1 allows remote attackers to cause a denial of service or execute code, aka "Microsoft-discovered variant of Chunked Encoding buffer overrun."
Published Apr 2, 2003
7.5
HIGHCVSS 2.0
EPSS 61.76%
Description
Buffer overflow in the ASP data transfer mechanism in Internet Information Server (IIS) 4.0, 5.0, and 5.1 allows remote attackers to cause a denial of service or execute code, aka "Microsoft-discovered variant of Chunked Encoding buffer overrun."
Affected products
No data.
OR
- 4.0
- 5.0
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.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
61.76% 0.61761
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.61761
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 (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 61.76% (0.61761) | 99.15th | v5 (v2026.06.15) |
| Aug 17, 2026 | 61.76% (0.61761) | 99.10th | v5 (v2026.06.15) |
| Jul 29, 2026 | 52.16% (0.52162) | 98.84th | v5 (v2026.06.15) |
| Jul 26, 2026 | 48.12% (0.48119) | 98.74th | v5 (v2026.06.15) |
| Jul 12, 2026 | 52.16% (0.52162) | 98.83th | v5 (v2026.06.15) |
| Jun 15, 2026 | 61.76% (0.61761) | 99.06th | v5 (v2026.06.15) |
| Feb 12, 2026 | 40.10% (0.40104) | 97.23th | v4 (v2025.03.14) |
| Dec 28, 2025 | 37.49% (0.37487) | 97.04th | v4 (v2025.03.14) |
| Dec 27, 2025 | 34.35% (0.34346) | 96.86th | v4 (v2025.03.14) |
| Oct 28, 2025 | 37.49% (0.37487) | 96.99th | v4 (v2025.03.14) |
| Oct 27, 2025 | 34.35% (0.34346) | 96.80th | v4 (v2025.03.14) |
| Oct 1, 2025 | 37.49% (0.37487) | 97.08th | v4 (v2025.03.14) |
| Jul 30, 2025 | 34.35% (0.34346) | 96.82th | v4 (v2025.03.14) |
| Jul 20, 2025 | 37.49% (0.37487) | 97.02th | v4 (v2025.03.14) |
| Mar 30, 2025 | 51.81% (0.51813) | 97.68th | v4 (v2025.03.14) |
| Mar 29, 2025 | 35.43% (0.35425) | 95.45th | v4 (v2025.03.14) |
| Mar 17, 2025 | 51.81% (0.51813) | 97.64th | v4 (v2025.03.14) |
| Dec 12, 2024 | 21.50% (0.21495) | 96.64th | v3 (v2023.03.01) |
| Jan 29, 2024 | 21.50% (0.21495) | 96.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 23.64% (0.23644) | 95.79th | v3 (v2023.03.01) |
| Mar 6, 2023 | 36.03% (0.36031) | 97.85th | v2 (v2022.01.01) |
| Feb 4, 2022 | 36.03% (0.36031) | 96.98th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (9)
- http://www.cert.org/advisories/CA-2002-09.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.cisco.com/warp/public/707/Microsoft-IIS-vulnerabilities-MS02-018.shtml vendor-advisoryx_refsource_CISCO
- http://www.iss.net/security_center/static/8796.php vdb-entryx_refsource_XF
- http://www.kb.cert.org/vuls/id/669779 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.osvdb.org/3301 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/4490 vdb-entryx_refsource_BID
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-018 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A22 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A72 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://www.cert.org/advisories/CA-2002-09.html | third-party-advisoryx_refsource_CERTUS Government Resource | |
| http://www.cisco.com/warp/public/707/Microsoft-IIS-vulnerabilities-MS02-018.shtml | vendor-advisoryx_refsource_CISCO | |
| http://www.iss.net/security_center/static/8796.php | vdb-entryx_refsource_XF | |
| http://www.kb.cert.org/vuls/id/669779 | third-party-advisoryx_refsource_CERT-VNUS Government Resource | |
| http://www.osvdb.org/3301 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/4490 | vdb-entryx_refsource_BID | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-018 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A22 | vdb-entrysignaturex_refsource_OVAL | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A72 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 2, 2003
Updated Aug 8, 2024
Reserved Mar 19, 2002
Link CVE-2002-0147
CISA Vulnrichment
Updated n/a