{"cve":"CVE-2009-3522","nvd":{"published":"2009-10-01T17:00:00.250","modified":"2026-06-16T23:11:46.357","status":"Modified","description":"Stack-based buffer overflow in aswMon2.sys in avast! Home and Professional for Windows 4.8.1351, and possibly other versions before 4.8.1356, allows local users to cause a denial of service (system crash) and possibly gain privileges via a crafted IOCTL request to IOCTL 0xb2c80018.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://osvdb.org/58402","http://secunia.com/advisories/36858","http://www.avast.com/eng/avast-4-home_pro-revision-history.html","http://www.securityfocus.com/archive/1/506681/100/0/threaded","http://www.securityfocus.com/bid/36507"],"products":["avast:avast_antivirus_home","avast:avast_antivirus_professional"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-3522","score":0.00947,"percentile":0.61164,"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."]}