HIGH
Buffer overflow in the chunked encoding transfer mechanism in IIS 4.0 and 5.0 allows attackers to execute arbitrary code via the processing of HTR request sessions, aka "Heap Overrun in HTR Chunked Encoding Could Enable Web Server Compromise."
Published Apr 2, 2003
7.5
HIGHCVSS 2.0
EPSS 31.00%
Description
Buffer overflow in the chunked encoding transfer mechanism in IIS 4.0 and 5.0 allows attackers to execute arbitrary code via the processing of HTR request sessions, aka "Heap Overrun in HTR Chunked Encoding Could Enable Web Server Compromise."
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.
31.00% 0.31005
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.31005
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 (27 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 31.00% (0.31005) | 98.21th | v5 (v2026.06.15) |
| Aug 17, 2026 | 31.00% (0.31005) | 98.11th | v5 (v2026.06.15) |
| Jul 29, 2026 | 23.90% (0.23901) | 97.60th | v5 (v2026.06.15) |
| Jul 26, 2026 | 16.18% (0.16184) | 96.60th | v5 (v2026.06.15) |
| Jul 12, 2026 | 23.90% (0.23901) | 97.57th | v5 (v2026.06.15) |
| Jun 15, 2026 | 31.00% (0.31005) | 98.02th | v5 (v2026.06.15) |
| Feb 12, 2026 | 62.41% (0.62409) | 98.32th | v4 (v2025.03.14) |
| Dec 28, 2025 | 65.66% (0.65661) | 98.43th | v4 (v2025.03.14) |
| Dec 27, 2025 | 33.45% (0.33445) | 96.79th | v4 (v2025.03.14) |
| Oct 28, 2025 | 65.66% (0.65661) | 98.41th | v4 (v2025.03.14) |
| Oct 27, 2025 | 33.45% (0.33445) | 96.73th | v4 (v2025.03.14) |
| Oct 1, 2025 | 65.66% (0.65661) | 98.45th | v4 (v2025.03.14) |
| Jul 30, 2025 | 33.45% (0.33445) | 96.75th | v4 (v2025.03.14) |
| Mar 30, 2025 | 65.66% (0.65661) | 98.36th | v4 (v2025.03.14) |
| Mar 29, 2025 | 57.08% (0.57082) | 97.31th | v4 (v2025.03.14) |
| Mar 19, 2025 | 65.66% (0.65661) | 98.32th | v4 (v2025.03.14) |
| Mar 17, 2025 | 70.92% (0.70917) | 98.61th | v4 (v2025.03.14) |
| Mar 2, 2025 | 81.86% (0.81857) | 98.66th | v3 (v2023.03.01) |
| Dec 17, 2024 | 85.71% (0.85713) | 98.78th | v3 (v2023.03.01) |
| Dec 12, 2024 | 93.08% (0.93082) | 99.17th | v3 (v2023.03.01) |
| Jan 29, 2024 | 93.64% (0.93635) | 98.94th | v3 (v2023.03.01) |
| Sep 11, 2023 | 93.38% (0.93384) | 98.74th | v3 (v2023.03.01) |
| Apr 17, 2023 | 94.62% (0.94622) | 98.77th | v3 (v2023.03.01) |
| Mar 7, 2023 | 96.61% (0.96612) | 99.31th | v3 (v2023.03.01) |
| Mar 6, 2023 | 20.26% (0.20262) | 96.46th | v2 (v2022.01.01) |
| Apr 1, 2022 | 20.26% (0.20262) | 96.13th | v2 (v2022.01.01) |
| Feb 4, 2022 | 20.26% (0.20262) | 94.02th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (10)
- http://archives.neohapsis.com/archives/vulnwatch/2002-q2/0099.html mailing-listx_refsource_VULNWATCH
- http://marc.info/?l=bugtraq&m=102392069305962&w=2 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=ntbugtraq&m=102392308608100&w=2 mailing-listx_refsource_NTBUGTRAQ
- http://online.securityfocus.com/archive/1/276767 mailing-listx_refsource_BUGTRAQ
- http://www.iss.net/security_center/static/9327.php vdb-entryx_refsource_XF
- http://www.kb.cert.org/vuls/id/313819 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.securityfocus.com/bid/4855 vdb-entryx_refsource_BID
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-028 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A182 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A29 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://archives.neohapsis.com/archives/vulnwatch/2002-q2/0099.html | mailing-listx_refsource_VULNWATCH | |
| http://marc.info/?l=bugtraq&m=102392069305962&w=2 | mailing-listx_refsource_BUGTRAQ | |
| http://marc.info/?l=ntbugtraq&m=102392308608100&w=2 | mailing-listx_refsource_NTBUGTRAQ | |
| http://online.securityfocus.com/archive/1/276767 | mailing-listx_refsource_BUGTRAQ | |
| http://www.iss.net/security_center/static/9327.php | vdb-entryx_refsource_XF | |
| http://www.kb.cert.org/vuls/id/313819 | third-party-advisoryx_refsource_CERT-VNUS Government Resource | |
| http://www.securityfocus.com/bid/4855 | vdb-entryx_refsource_BID | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-028 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A182 | vdb-entrysignaturex_refsource_OVAL | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A29 | 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 May 8, 2002
Link CVE-2002-0364
CISA Vulnrichment
Updated n/a