CVE-2003-0107

CVE-2003-0107 is a high-severity vulnerability in Zlib with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 26% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Buffer overflow in the gzprintf function in zlib 1.1.4, when zlib is compiled without vsnprintf or when long inputs are truncated using vsnprintf, allows attackers to cause a denial of service or possibly execute arbitrary code.

Frequently asked questions

What is CVE-2003-0107?
Buffer overflow in the gzprintf function in zlib 1.1.4, when zlib is compiled without vsnprintf or when long inputs are truncated using vsnprintf, allows attackers to cause a denial of service or possibly execute arbitrary code.
How severe is CVE-2003-0107?
CVE-2003-0107 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-0107 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 26% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0107?
CVE-2003-0107 affects Zlib. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-0107?
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-2003-0107 published?
CVE-2003-0107 was published on 2003-03-07 and last updated on 2026-06-16.

References

Affected products (1)

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