CVE-2002-0663

CVE-2002-0663 is a high-severity vulnerability in Symantec Norton Internet Security with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Buffer overflow in HTTP Proxy for Symantec Norton Personal Internet Firewall 3.0.4.91 and Norton Internet Security 2001 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a large outgoing HTTP request.

Frequently asked questions

What is CVE-2002-0663?
Buffer overflow in HTTP Proxy for Symantec Norton Personal Internet Firewall 3.0.4.91 and Norton Internet Security 2001 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a large outgoing HTTP request.
How severe is CVE-2002-0663?
CVE-2002-0663 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2002-0663 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0663?
CVE-2002-0663 primarily affects Symantec Norton Internet Security. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-0663?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2002-0663 published?
CVE-2002-0663 was published on 2002-07-26 and last updated on 2026-06-16.

References

Affected products (2)

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