CVE-2003-0959
CVE-2003-0959 is a critical-severity vulnerability with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Critical (CVSS 2.0 base score 10.0)
- EPSS exploit prediction: 2% (74th percentile)
- Actively exploited: Not listed in CISA KEV
- Published:
- Last modified:
Description
Multiple integer overflows in the 32bit emulation for AMD64 architectures in Linux 2.4 kernel before 2.4.21 allows attackers to cause a denial of service or gain root privileges via unspecified vectors that trigger copy_from_user function calls with improper length arguments.
Frequently asked questions
- What is CVE-2003-0959?
- Multiple integer overflows in the 32bit emulation for AMD64 architectures in Linux 2.4 kernel before 2.4.21 allows attackers to cause a denial of service or gain root privileges via unspecified vectors that trigger copy_from_user function calls with improper length arguments.
- How severe is CVE-2003-0959?
- CVE-2003-0959 has a CVSS 2.0 base score of 10.0, rated critical severity.
- Is CVE-2003-0959 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2003-0959?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2003-0959 published?
- CVE-2003-0959 was published on 2003-12-31 and last updated on 2026-06-16.