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CVE Record

CVE-2001-1421: AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service (applicati...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is an old denial-of-service issue in AOL Instant Messenger 4.7 and earlier. A remote sender could make the AIM application crash through specially crafted formatted content. The known impact is availability of the client, not data theft or system takeover. Exposure is likely limited to organizations still running legacy AOL Instant Messenger 4.7 or earlier. Most modern environments should have no exposure, but old unmanaged endpoints, archives, lab systems, or legacy remote-access images should be checked. Low priority unless legacy AIM is still present. The main business risk is user disruption from client crashes, not confirmed compromise. Treat this as a legacy software hygiene issue. Mitigation focus: Inventory endpoints for AIM 4.7 or earlier.; Remove unsupported AIM clients from managed systems.; Replace AIM with supported messaging platforms..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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