{"cve":"CVE-2009-1786","nvd":{"published":"2009-05-26T15:30:05.390","modified":"2026-06-16T23:08:03.400","status":"Modified","description":"The malloc subsystem in libc in IBM AIX 5.3 and 6.1 allows local users to create or overwrite arbitrary files via a symlink attack on the log file associated with the MALLOCDEBUG environment variable.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-362"],"references":["http://aix.software.ibm.com/aix/efixes/security/libc_advisory.asc","http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=802","http://secunia.com/advisories/35146","http://securitytracker.com/id?1022261","http://www.ibm.com/support/docview.wss?uid=isg1IZ50121"],"products":["ibm:aix"],"source":"nvd","synced_at":"2026-10-19T19:54:07.895733559+00:00"},"epss":{"cve":"CVE-2009-1786","score":0.00666,"percentile":0.51864,"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."]}