Internet Explorer 5.01, 5.5, and 6 allows remote attackers to spoof a less restrictive security zone and execute arbitrary code via an HTML page containing URLs that contain hostnames that have been double hex encoded, which are decoded twice to generate a malicious hostname, aka the "URL Decoding Zone Spoofing Vulnerability."
Published Feb 8, 2005
5.1
MEDIUMCVSS 2.0
EPSS 24.30%
Description
Internet Explorer 5.01, 5.5, and 6 allows remote attackers to spoof a less restrictive security zone and execute arbitrary code via an HTML page containing URLs that contain hostnames that have been double hex encoded, which are decoded twice to generate a malicious hostname, aka the "URL Decoding Zone Spoofing Vulnerability."
Affected products
No data.
- 6
- 5.01
- 5.5
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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 24.30% (0.24305) | 97.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 24.30% (0.24305) | 97.58th | v5 (v2026.06.15) |
| Jan 3, 2026 | 35.14% (0.35144) | 96.91th | v4 (v2025.03.14) |
| Mar 30, 2025 | 38.33% (0.38328) | 96.93th | v4 (v2025.03.14) |
| Mar 29, 2025 | 51.21% (0.51213) | 96.89th | v4 (v2025.03.14) |
| Mar 19, 2025 | 38.33% (0.38328) | 96.78th | v4 (v2025.03.14) |
| Mar 17, 2025 | 35.55% (0.35553) | 96.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 92.70% (0.92698) | 99.13th | v3 (v2023.03.01) |
| Aug 16, 2024 | 92.70% (0.92698) | 99.07th | v3 (v2023.03.01) |
| Feb 8, 2024 | 90.60% (0.90599) | 98.71th | v3 (v2023.03.01) |
| Jan 16, 2024 | 89.59% (0.89593) | 98.52th | v3 (v2023.03.01) |
| May 31, 2023 | 88.74% (0.88736) | 98.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 72.70% (0.72704) | 97.48th | 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 (10)
- http://marc.info/?l=bugtraq&m=110796851002781&w=2 mailing-listx_refsource_BUGTRAQ
- http://www.kb.cert.org/vuls/id/580299 third-party-advisoryx_refsource_CERT-VNPatchThird Party AdvisoryUS Government Resource
- http://www.us-cert.gov/cas/techalerts/TA05-039A.html third-party-advisoryx_refsource_CERTPatchUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-014 vendor-advisoryx_refsource_MS
- https://exchange.xforce.ibmcloud.com/vulnerabilities/19214 vdb-entryx_refsource_XF
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1308 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1736 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3060 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3196 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3586 vdb-entrysignaturex_refsource_OVAL
Change history (0)
No recorded changes yet.