How severe is CVE-1999-0486?

CVE-1999-0486 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-1999-0486 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0486?

CVE-1999-0486 affects Aol Instant Messenger. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-0486?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-1999-0486 published?

CVE-1999-0486 was published on 1998-02-01 and last updated on 2026-06-16.

CVE-1999-0486

CVE-1999-0486 is a medium-severity vulnerability in Aol Instant Messenger with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Aol Instant Messenger
Published: 1998-02-01
Last modified: 2026-06-16

Description

Denial of service in AOL Instant Messenger when a remote attacker sends a malicious hyperlink to the receiving client, potentially causing a system crash.

Frequently asked questions

What is CVE-1999-0486?: Denial of service in AOL Instant Messenger when a remote attacker sends a malicious hyperlink to the receiving client, potentially causing a system crash.
How severe is CVE-1999-0486?: CVE-1999-0486 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-1999-0486 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0486?: CVE-1999-0486 affects Aol Instant Messenger. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-0486?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-0486 published?: CVE-1999-0486 was published on 1998-02-01 and last updated on 2026-06-16.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0486

Affected products (1)

cpe:2.3:a:aol:instant_messenger:3.5:*:*:*:*:*:*:*

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