{"cve":"CVE-2013-2171","nvd":{"published":"2013-07-02T03:43:33.647","modified":"2026-06-16T23:52:52.770","status":"Modified","description":"The vm_map_lookup function in sys/vm/vm_map.c in the mmap implementation in the kernel in FreeBSD 9.0 through 9.1-RELEASE-p4 does not properly determine whether a task should have write access to a memory location, which allows local users to bypass filesystem write permissions and consequently gain privileges via a crafted application that leverages read permissions, and makes mmap and ptrace system calls.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"references":["http://svnweb.freebsd.org/base?view=revision&revision=251901","http://www.debian.org/security/2013/dsa-2714","http://www.freebsd.org/security/advisories/FreeBSD-SA-13:06.mmap.asc","http://svnweb.freebsd.org/base?view=revision&revision=251901","http://www.debian.org/security/2013/dsa-2714"],"products":["freebsd:freebsd"],"source":"nvd","synced_at":"2026-10-19T20:29:16.037019470+00:00"},"epss":{"cve":"CVE-2013-2171","score":0.06942,"percentile":0.94115,"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."]}