{"cve":"CVE-2009-5023","nvd":{"published":"2014-06-10T14:55:08.757","modified":"2026-06-16T23:14:50.923","status":"Modified","description":"The (1) dshield.conf, (2) mail-buffered.conf, (3) mynetwatchman.conf, and (4) mynetwatchman.conf actions in action.d/ in Fail2ban before 0.8.5 allows local users to write to arbitrary files via a symlink attack on temporary files with predictable names, as demonstrated by /tmp/fail2ban-mail.txt.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-59"],"references":["http://secunia.com/advisories/58841","http://security.gentoo.org/glsa/glsa-201406-03.xml","https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=544232","https://github.com/fail2ban/fail2ban/blob/sdist/0.8.5/ChangeLog","http://secunia.com/advisories/58841"],"products":["fail2ban:fail2ban"],"source":"nvd","synced_at":"2026-10-19T20:33:06.232976534+00:00"},"epss":{"cve":"CVE-2009-5023","score":0.0034,"percentile":0.27579,"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."]}