Integer signedness error in select() on OpenBSD 3.1 and earlier allows local users to overwrite arbitrary kernel memory via a negative value for the size parameter, which satisfies the boundary check as a signed integer, but is later used as an unsigned integer during a data copying operation.
CVE-2002-1420
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 0%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 25.0%
- KEV
- Not listed
Published
April 11, 2003
Last Modified
June 16, 2026
References (10)
- cve@mitrehttp://marc.info/?l=bugtraq&m=102918817012863&w=2
- cve@mitrehttp://www.iss.net/security_center/static/9809.php
- cve@mitrehttp://www.kb.cert.org/vuls/id/259787
- cve@mitrehttp://www.osvdb.org/7554
- cve@mitrehttp://www.securityfocus.com/bid/5442
- af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=bugtraq&m=102918817012863&w=2
- af854a3a-2127-422b-91ae-364da2661108http://www.iss.net/security_center/static/9809.php
- af854a3a-2127-422b-91ae-364da2661108http://www.kb.cert.org/vuls/id/259787
- af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/7554
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/5442
Frequently asked(4)
What is CVE-2002-1420?
CVE-2002-1420 is a none vulnerability published on April 11, 2003. Integer signedness error in select() on OpenBSD 3.1 and earlier allows local users to overwrite arbitrary kernel memory via a negative value for the size parameter, which satisfies the boundary check as a signed integer, but is later used as an unsigned integer during a data copying operation.
When was CVE-2002-1420 disclosed?
CVE-2002-1420 was first published in the National Vulnerability Database on April 11, 2003, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2002-1420 actively exploited?
CVE-2002-1420 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2002-1420?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2002-1420, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2002-1420
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