Help and Support Center in Microsoft Windows XP SP1 does not properly validate HCP URLs, which allows remote attackers to execute arbitrary code via quotation marks in an hcp:// URL, which are not quoted when constructing the argument list to HelpCtr.exe
Published Apr 16, 2004
5.1
MEDIUMCVSS 2.0
EPSS 21.85%
Description
Help and Support Center in Microsoft Windows XP SP1 does not properly validate HCP URLs, which allows remote attackers to execute arbitrary code via quotation marks in an hcp:// URL, which are not quoted when constructing the argument list to HelpCtr.exe.
Affected products
No data.
- 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:H/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 (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 21.85% (0.21852) | 97.58th | v5 (v2026.06.15) |
| Jun 15, 2026 | 21.85% (0.21852) | 97.33th | v5 (v2026.06.15) |
| Dec 28, 2025 | 33.77% (0.33770) | 96.79th | v4 (v2025.03.14) |
| Dec 27, 2025 | 36.99% (0.36988) | 97.03th | v4 (v2025.03.14) |
| Dec 20, 2025 | 33.77% (0.33770) | 96.79th | v4 (v2025.03.14) |
| Oct 28, 2025 | 45.55% (0.45546) | 97.45th | v4 (v2025.03.14) |
| Oct 27, 2025 | 42.34% (0.42335) | 97.30th | v4 (v2025.03.14) |
| Oct 1, 2025 | 45.55% (0.45546) | 97.54th | v4 (v2025.03.14) |
| Mar 17, 2025 | 42.34% (0.42335) | 97.14th | v4 (v2025.03.14) |
| Feb 12, 2025 | 89.34% (0.89340) | 99.04th | v3 (v2023.03.01) |
| Dec 17, 2024 | 87.32% (0.87324) | 98.88th | v3 (v2023.03.01) |
| Dec 12, 2024 | 90.18% (0.90177) | 98.94th | v3 (v2023.03.01) |
| May 1, 2024 | 89.52% (0.89517) | 98.73th | v3 (v2023.03.01) |
| Feb 14, 2024 | 88.16% (0.88164) | 98.56th | v3 (v2023.03.01) |
| Oct 23, 2023 | 96.18% (0.96181) | 99.33th | v3 (v2023.03.01) |
| Mar 24, 2023 | 95.72% (0.95720) | 99.01th | v3 (v2023.03.01) |
| Mar 7, 2023 | 95.53% (0.95535) | 98.94th | 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) |
References (11)
- http://lists.grok.org.uk/pipermail/full-disclosure/2004-April/020065.html mailing-listx_refsource_FULLDISCBroken Link
- http://marc.info/?l=bugtraq&m=108196864221676&w=2 mailing-listx_refsource_BUGTRAQThird Party Advisory
- http://www.ciac.org/ciac/bulletins/o-114.shtml third-party-advisorygovernment-resourcex_refsource_CIACBroken Link
- http://www.idefense.com/application/poi/display?id=100&type=vulnerabilities x_refsource_MISCBroken Link
- http://www.kb.cert.org/vuls/id/260588 third-party-advisoryx_refsource_CERT-VNPatchThird Party AdvisoryUS Government Resource
- http://www.securityfocus.com/bid/10119 vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry
- http://www.us-cert.gov/cas/techalerts/TA04-104A.html third-party-advisoryx_refsource_CERTBroken LinkThird Party AdvisoryUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-011 vendor-advisoryx_refsource_MSPatchVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15704 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1000 vdb-entrysignaturex_refsource_OVALBroken Link
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A904 vdb-entrysignaturex_refsource_OVALBroken Link
Change history (0)
No recorded changes yet.