The MHTML protocol handler in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly handle a MIME format in a request for content blocks in a document, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted web site that is visited in Internet Explorer, aka "MHTML Mime-Formatted Request Vulnerability."
Published Jan 31, 2011
6.1
MEDIUMCVSS 3.1
EPSS 46.82%
Description
The MHTML protocol handler in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly handle a MIME format in a request for content blocks in a document, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted web site that is visited in Internet Explorer, aka "MHTML Mime-Formatted Request Vulnerability."
Affected products
No data.
- n/a
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- r2
- r2
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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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Jan 21, 2025 · SSVC 2.0.3
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 (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 46.82% (0.46819) | 98.79th | v5 (v2026.06.15) |
| Jun 15, 2026 | 46.82% (0.46819) | 98.67th | v5 (v2026.06.15) |
| Mar 2, 2026 | 70.14% (0.70144) | 98.66th | v4 (v2025.03.14) |
| Feb 16, 2026 | 59.20% (0.59202) | 98.19th | v4 (v2025.03.14) |
| Dec 28, 2025 | 70.14% (0.70144) | 98.62th | v4 (v2025.03.14) |
| Dec 27, 2025 | 78.86% (0.78858) | 99.01th | v4 (v2025.03.14) |
| Dec 17, 2025 | 70.14% (0.70144) | 98.61th | v4 (v2025.03.14) |
| Oct 28, 2025 | 72.33% (0.72326) | 98.69th | v4 (v2025.03.14) |
| Oct 27, 2025 | 80.35% (0.80352) | 99.08th | v4 (v2025.03.14) |
| Oct 10, 2025 | 72.33% (0.72326) | 98.69th | v4 (v2025.03.14) |
| Oct 1, 2025 | 73.88% (0.73876) | 98.78th | v4 (v2025.03.14) |
| Jun 6, 2025 | 79.92% (0.79917) | 99.04th | v4 (v2025.03.14) |
| Mar 30, 2025 | 77.87% (0.77873) | 98.95th | v4 (v2025.03.14) |
| Mar 29, 2025 | 65.17% (0.65174) | 97.88th | v4 (v2025.03.14) |
| Mar 25, 2025 | 77.87% (0.77873) | 98.97th | v4 (v2025.03.14) |
| Mar 17, 2025 | 80.99% (0.80989) | 99.11th | v4 (v2025.03.14) |
| Dec 12, 2024 | 97.05% (0.97051) | 99.82th | v3 (v2023.03.01) |
| Feb 17, 2024 | 97.05% (0.97050) | 99.73th | v3 (v2023.03.01) |
| Dec 8, 2023 | 96.98% (0.96981) | 99.67th | v3 (v2023.03.01) |
| Nov 10, 2023 | 97.24% (0.97237) | 99.80th | v3 (v2023.03.01) |
| Aug 1, 2023 | 97.30% (0.97299) | 99.79th | v3 (v2023.03.01) |
| Mar 7, 2023 | 97.36% (0.97357) | 99.78th | v3 (v2023.03.01) |
| Mar 6, 2023 | 66.33% (0.66335) | 99.05th | v2 (v2022.01.01) |
| Feb 4, 2022 | 66.33% (0.66335) | 98.83th | v2 (v2022.01.01) |
References (15)
- http://blogs.technet.com/b/msrc/archive/2011/01/28/microsoft-releases-security-advisory-2501696.aspx x_refsource_CONFIRM
- http://blogs.technet.com/b/srd/archive/2011/01/28/more-information-about-the-mhtml-script-injection-vulnerability.aspx x_refsource_CONFIRM
- http://osvdb.org/70693 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/43093 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.80vul.com/webzine_0x05/0x05%20IE%E4%B8%8BMHTML%E5%8D%8F%E8%AE%AE%E5%B8%A6%E6%9D%A5%E7%9A%84%E8%B7%A8%E5%9F%9F%E5%8D%B1%E5%AE%B3.html x_refsource_MISCExploit
- http://www.exploit-db.com/exploits/16071 exploitx_refsource_EXPLOIT-DB
- http://www.kb.cert.org/vuls/id/326549 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.microsoft.com/technet/security/advisory/2501696.mspx x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/46055 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1025003 vdb-entryx_refsource_SECTRACK
- http://www.us-cert.gov/cas/techalerts/TA11-102A.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.vupen.com/english/advisories/2011/0242 vdb-entryx_refsource_VUPENVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-026 vendor-advisoryx_refsource_MS
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65000 vdb-entryx_refsource_XF
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6956 vdb-entrysignaturex_refsource_OVAL
Change history (0)
No recorded changes yet.