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    CVE-2001-1421

    AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service (application crash) via a large number of different fonts followed by an HTML HR tag.

    Published:Oct 6, 2001
    Last Modified:Apr 16, 2026
    EPS:Mar 20, 2005
    EPSS Score:0.01962
    CVSS Score:5

    Affected Products

    Vendor
    Aol
    Product
    Instant Messenger

    Exploits

    http://www.securityfocus.com/archive/1/218920http://www.securityfocus.com/archive/1/218920

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2009-2404 (CVSS 9.3) — Heap-based buffer overflow in a regular-expression parser in Mozilla Network Security Services (NSS) before 3.…
    CVE-2007-5124 (CVSS 6.8) — The embedded Internet Explorer server control in AOL Instant Messenger (AIM) 6.5.3.12 and earlier allows remot…
    CVE-2007-4901 (CVSS 5.8) — The embedded Internet Explorer server control in AOL Instant Messenger (AIM) 6.1.41.2 and 6.2.32.1, AIM Pro, a…
    CVE-2007-3437 (CVSS 7.8) — AOL Instant Messenger (AIM) 6.1.32.1 on Windows XP allows remote attackers to cause a denial of service (appli…
    CVE-2007-3350 (CVSS 7.8) — AOL Instant Messenger (AIM) 6.1.32.1 on Windows XP allows remote attackers to cause a denial of service (appli…
    CVE-2007-1904 (CVSS 4.3) — Directory traversal vulnerability in AOL Instant Messenger (AIM) 5.9 and earlier, and ICQ 5.1 and probably ear…
    CVE-2006-0629 (CVSS 5.1) — Unspecified vulnerability in AOL Instant Messenger (AIM) 5.9.3861 allows user-assisted remote attackers to cau…
    CVE-2005-1655 (CVSS 5) — AOL Instant Messenger 5.5.x and earlier allows remote attackers to cause a denial of service (client crash) vi…
    CVE-2001-1420 (CVSS 5) — AOL Instant Messenger (AIM) 4.7 allows remote attackers to cause a denial of service (application crash) via a…
    CVE-2004-2373 (CVSS 7.5) — The Buddy icon file for AOL Instant Messenger (AIM) 4.3 through 5.5 is created in a predictable location, whic…

    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