Integer overflow in Microsoft Windows 98, 2000, XP SP2 and earlier, and Server 2003 SP1 and earlier allows remote attackers to execute arbitrary code via a crafted compiled Help (.CHM) file with a large size field that triggers a heap-based buffer overflow, as demonstrated using a "ms-its:" URL in Internet Explorer
Published Jun 15, 2005
10.0
HIGHCVSS 2.0
EPSS 47.33%
Description
Integer overflow in Microsoft Windows 98, 2000, XP SP2 and earlier, and Server 2003 SP1 and earlier allows remote attackers to execute arbitrary code via a crafted compiled Help (.CHM) file with a large size field that triggers a heap-based buffer overflow, as demonstrated using a "ms-its:" URL in Internet Explorer.
Affected products
No data.
- n/a
- 64-bit
- datacenter_64-bit
- datacenter_64-bit
- enterprise
- enterprise
- enterprise
- enterprise_64-bit
- enterprise_64-bit
- enterprise_64-bit
- r2
- r2
- r2
- r2
- r2
- standard
- standard
- standard
- standard_64-bit
- web
- web
- web
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- 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:C/I:C/A:C
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 (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 47.33% (0.47330) | 98.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 47.33% (0.47330) | 98.69th | v5 (v2026.06.15) |
| May 10, 2026 | 44.88% (0.44878) | 97.61th | v4 (v2025.03.14) |
| Dec 28, 2025 | 38.38% (0.38378) | 97.09th | v4 (v2025.03.14) |
| Dec 27, 2025 | 44.79% (0.44792) | 97.47th | v4 (v2025.03.14) |
| Oct 28, 2025 | 38.38% (0.38378) | 97.05th | v4 (v2025.03.14) |
| Oct 27, 2025 | 44.79% (0.44792) | 97.43th | v4 (v2025.03.14) |
| Oct 23, 2025 | 38.38% (0.38378) | 97.05th | v4 (v2025.03.14) |
| Oct 1, 2025 | 42.85% (0.42853) | 97.41th | v4 (v2025.03.14) |
| Jul 14, 2025 | 44.79% (0.44792) | 97.43th | v4 (v2025.03.14) |
| Mar 30, 2025 | 51.32% (0.51322) | 97.65th | v4 (v2025.03.14) |
| Mar 29, 2025 | 62.80% (0.62799) | 97.70th | v4 (v2025.03.14) |
| Mar 17, 2025 | 51.32% (0.51322) | 97.62th | v4 (v2025.03.14) |
| Dec 17, 2024 | 57.03% (0.57034) | 97.83th | v3 (v2023.03.01) |
| May 22, 2024 | 43.66% (0.43664) | 97.37th | v3 (v2023.03.01) |
| Oct 5, 2023 | 45.39% (0.45388) | 96.97th | v3 (v2023.03.01) |
| May 6, 2023 | 40.02% (0.40023) | 96.70th | v3 (v2023.03.01) |
| Mar 7, 2023 | 34.28% (0.34280) | 96.37th | v3 (v2023.03.01) |
| Mar 6, 2023 | 46.72% (0.46718) | 98.56th | v2 (v2022.01.01) |
| Feb 4, 2022 | 46.72% (0.46718) | 98.03th | v2 (v2022.01.01) |
No CWE recorded.
References (9)
- http://archives.neohapsis.com/archives/vulnwatch/2005-q2/0062.html mailing-listx_refsource_VULNWATCHPatchVendor Advisory
- http://secunia.com/advisories/15683 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://www.kb.cert.org/vuls/id/851869 third-party-advisoryx_refsource_CERT-VNPatchThird Party AdvisoryUS Government Resource
- http://www.securityfocus.com/bid/13953 vdb-entryx_refsource_BID
- http://www.us-cert.gov/cas/techalerts/TA05-165A.html third-party-advisoryx_refsource_CERTPatchThird Party AdvisoryUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-026 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1057 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A381 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A463 vdb-entrysignaturex_refsource_OVAL
Change history (0)
No recorded changes yet.