CVE-2002-1091

CVE-2002-1091 is a high-severity vulnerability in Mozilla 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

Netscape 6.2.3 and earlier, and Mozilla 1.0.1, allow remote attackers to corrupt heap memory and execute arbitrary code via a GIF image with a zero width.

Frequently asked questions

What is CVE-2002-1091?
Netscape 6.2.3 and earlier, and Mozilla 1.0.1, allow remote attackers to corrupt heap memory and execute arbitrary code via a GIF image with a zero width.
How severe is CVE-2002-1091?
CVE-2002-1091 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2002-1091 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-1091?
CVE-2002-1091 primarily affects Mozilla. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-1091?
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-2002-1091 published?
CVE-2002-1091 was published on 2002-10-04 and last updated on 2026-06-16.

References

Affected products (13)

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