How severe is CVE-2002-1766?

CVE-2002-1766 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2002-1766 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-1766?

CVE-2002-1766 affects Netscape Communicator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2002-1766?

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

When was CVE-2002-1766 published?

CVE-2002-1766 was published on 2002-12-31 and last updated on 2026-06-16.

CVE-2002-1766

CVE-2002-1766 is a medium-severity vulnerability in Netscape Communicator with a CVSS 2.0 base score of 4.6. 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 4.6)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Netscape Communicator
Published: 2002-12-31
Last modified: 2026-06-16

Description

Buffer overflow in Composer in Netscape 4.77 allows local users to overwrite process memory and execute arbitrary code via a font tag with a long face attribute.

Frequently asked questions

What is CVE-2002-1766?: Buffer overflow in Composer in Netscape 4.77 allows local users to overwrite process memory and execute arbitrary code via a font tag with a long face attribute.
How severe is CVE-2002-1766?: CVE-2002-1766 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2002-1766 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-1766?: CVE-2002-1766 affects Netscape Communicator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2002-1766?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-1766 published?: CVE-2002-1766 was published on 2002-12-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:netscape:communicator:4.77:*:*:*:*:*:*:*

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