{"cve":"CVE-2017-13649","nvd":{"published":"2017-08-23T21:29:00.280","modified":"2026-06-17T01:04:56.157","status":"Modified","description":"UnrealIRCd 4.0.13 and earlier creates a PID file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for PID file modification before a root script executes a \"kill `cat /pathname`\" command. NOTE: the vendor indicates that there is no common or recommended scenario in which a root script would execute this kill command.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-665"],"references":["http://www.securityfocus.com/bid/100507","https://bugs.unrealircd.org/view.php?id=4990","http://www.securityfocus.com/bid/100507","https://bugs.unrealircd.org/view.php?id=4990"],"products":["unrealircd:unrealircd"],"source":"nvd","synced_at":"2026-10-19T20:44:47.710380879+00:00"},"epss":{"cve":"CVE-2017-13649","score":0.00284,"percentile":0.20985,"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."]}