CVE-2001-1421

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2001-10-06 · updated 2026-06-16

Description

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.

Affected products

AOL Instant Messenger: through 4.7

References

http://www.kb.cert.org/vuls/id/530299
http://www.kb.cert.org/vuls/id/JARL-569MD7
http://www.securityfocus.com/archive/1/218920
http://www.securityfocus.com/archive/1/247707
http://www.securityfocus.com/bid/3756
https://exchange.xforce.ibmcloud.com/vulnerabilities/7757
http://www.kb.cert.org/vuls/id/530299
http://www.kb.cert.org/vuls/id/JARL-569MD7
http://www.securityfocus.com/archive/1/218920
http://www.securityfocus.com/archive/1/247707
http://www.securityfocus.com/bid/3756
https://exchange.xforce.ibmcloud.com/vulnerabilities/7757

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