{"cve":"CVE-2002-0839","nvd":{"published":"2002-10-11T04:00:00.000","modified":"2026-06-16T21:58:14.063","status":"Modified","description":"The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user running as the Apache UID to send a SIGUSR1 signal to any process as root, resulting in a denial of service (process kill) or possibly other behaviors that would not normally be allowed, by modifying the parent[].pid and parent[].last_rtime segments in the scoreboard.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["ftp://patches.sgi.com/support/free/security/advisories/20021105-01-I","http://archives.neohapsis.com/archives/bugtraq/2002-10/0195.html","http://archives.neohapsis.com/archives/bugtraq/2002-10/0254.html","http://archives.neohapsis.com/archives/vulnwatch/2002-q4/0012.html","http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000530"],"products":["apache:http_server","debian:debian_linux"],"source":"nvd","synced_at":"2026-10-19T19:34:38.930894741+00:00"},"epss":{"cve":"CVE-2002-0839","score":0.00944,"percentile":0.61056,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}