{"cve":"CVE-2003-1161","nvd":{"published":"2003-12-31T05:00:00.000","modified":"2026-06-16T22:03:38.100","status":"Modified","description":"exit.c in Linux kernel 2.6-test9-CVS, as stored on kernel.bkbits.net, was modified to contain a backdoor, which could allow local users to elevate their privileges by passing __WCLONE|__WALL to the sys_wait4 function.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://www.securityfocus.com/bid/8987","http://www.ussg.iu.edu/hypermail/linux/kernel/0311.0/0621.html","http://www.ussg.iu.edu/hypermail/linux/kernel/0311.0/0627.html","http://www.ussg.iu.edu/hypermail/linux/kernel/0311.0/0630.html","http://www.securityfocus.com/bid/8987"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T19:35:54.859949650+00:00"},"epss":{"cve":"CVE-2003-1161","score":0.00485,"percentile":0.41811,"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."]}