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    CVE-2007-1749

    Integer underflow in the CDownloadSink class code in the Vector Markup Language (VML) component (VGX.DLL), as used in Internet Explorer 5.01, 6, and 7 allows remote attackers to execute arbitrary code via compressed content with an invalid buffer size, which triggers a heap-based buffer overflow.

    Published:Aug 14, 2007
    Last Modified:Apr 23, 2026
    EPS:Aug 14, 2007
    EPSS Score:0.78471
    CVSS Score:9.3

    Affected Products

    Vendor
    Microsoft
    Product
    Internet Explorer

    Exploits

    https://www.exploit-db.com/exploits/30494

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-59295 (CVSS 8.8) — Heap-based buffer overflow in Internet Explorer allows an unauthorized attacker to execute code over a network…
    CVE-2021-35240 (CVSS 6.5) — A security researcher stored XSS via a Help Server setting. This affects customers using Internet Explorer, be…
    CVE-2021-26419 (CVSS 7.5) — Scripting Engine Memory Corruption Vulnerability…
    CVE-2021-27085 (CVSS 8.8) — Internet Explorer Remote Code Execution Vulnerability…
    CVE-2021-26411 (CVSS 8.8) — Internet Explorer Memory Corruption Vulnerability…
    CVE-2020-17058 (CVSS 7.5) — Microsoft Browser Memory Corruption Vulnerability…
    CVE-2020-17053 (CVSS 7.5) — Internet Explorer Memory Corruption Vulnerability…
    CVE-2020-17052 (CVSS 7.5) — Scripting Engine Memory Corruption Vulnerability…
    CVE-2020-1506 (CVSS 6.1) — <p>An elevation of privilege vulnerability exists in the way that the Wininit.dll handles objects in memory. A…
    CVE-2020-1012 (CVSS 8.8) — <p>An elevation of privilege vulnerability exists in the way that the Wininit.dll handles objects in memory. A…

    References

    http://research.eeye.com/html/advisories/published/AD20070814a.html
    http://secunia.com/advisories/26409
    http://securityreason.com/securityalert/3020
    http://www.kb.cert.org/vuls/id/468800
    http://www.securityfocus.com/archive/1/476498/100/0/threaded
    http://www.securityfocus.com/bid/25310
    http://www.securitytracker.com/id?1018568
    http://www.us-cert.gov/cas/techalerts/TA07-226A.html
    http://www.vupen.com/english/advisories/2007/2874
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-050
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1784
    http://research.eeye.com/html/advisories/published/AD20070814a.html
    http://secunia.com/advisories/26409
    http://securityreason.com/securityalert/3020
    http://www.kb.cert.org/vuls/id/468800
    http://www.securityfocus.com/archive/1/476498/100/0/threaded
    http://www.securityfocus.com/bid/25310
    http://www.securitytracker.com/id?1018568
    http://www.us-cert.gov/cas/techalerts/TA07-226A.html
    http://www.vupen.com/english/advisories/2007/2874
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-050
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1784

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High