{"cve":"CVE-2011-2520","nvd":{"published":"2011-07-21T23:55:03.410","modified":"2026-06-16T23:31:30.333","status":"Modified","description":"fw_dbus.py in system-config-firewall 1.2.29 and earlier uses the pickle Python module unsafely during D-Bus communication between the GUI and the backend, which might allow local users to gain privileges via a crafted serialized object.","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-502"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2011-August/063314.html","http://secunia.com/advisories/45294","http://securitytracker.com/id?1025793","http://www.openwall.com/lists/oss-security/2011/07/18/6","http://www.redhat.com/support/errata/RHSA-2011-0953.html"],"products":["fedoraproject:fedora","redhat:system-config-firewall"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-2520","score":0.00421,"percentile":0.36482,"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."]}