{"cve":"CVE-2011-0495","nvd":{"published":"2011-01-20T19:00:08.600","modified":"2026-06-16T23:27:30.307","status":"Modified","description":"Stack-based buffer overflow in the ast_uri_encode function in main/utils.c in Asterisk Open Source before 1.4.38.1, 1.4.39.1, 1.6.1.21, 1.6.2.15.1, 1.6.2.16.1, 1.8.1.2, 1.8.2.; and Business Edition before C.3.6.2; when running in pedantic mode allows remote authenticated users to execute arbitrary code via crafted caller ID data in vectors involving the (1) SIP channel driver, (2) URIENCODE dialplan function, or (3) AGI dialplan function.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-787"],"references":["http://downloads.asterisk.org/pub/security/AST-2011-001-1.6.2.diff","http://downloads.asterisk.org/pub/security/AST-2011-001.html","http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053689.html","http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053713.html","http://osvdb.org/70518"],"products":["debian:debian_linux","digium:asterisk","digium:asterisknow","digium:s800i_firmware","fedoraproject:fedora"],"source":"nvd","synced_at":"2026-10-19T19:57:56.749847046+00:00"},"epss":{"cve":"CVE-2011-0495","score":0.04206,"percentile":0.90969,"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."]}