{"cve":"CVE-2023-6246","nvd":{"published":"2024-01-31T14:15:48.420","modified":"2026-06-17T06:50:23.203","status":"Modified","description":"A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-787","CWE-122"],"references":["http://packetstormsecurity.com/files/176931/glibc-qsort-Out-Of-Bounds-Read-Write.html","http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html","http://seclists.org/fulldisclosure/2024/Feb/3","http://seclists.org/fulldisclosure/2024/Feb/5","https://access.redhat.com/security/cve/CVE-2023-6246"],"products":["fedoraproject:fedora","gnu:glibc"],"source":"nvd","synced_at":"2026-10-19T21:44:57.175229480+00:00"},"epss":{"cve":"CVE-2023-6246","score":0.04794,"percentile":0.9194,"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."]}