{"cve":"CVE-2007-6523","nvd":{"published":"2007-12-24T20:46:00.000","modified":"2026-06-16T22:48:15.653","status":"Modified","description":"Algorithmic complexity vulnerability in Opera 9.50 beta and 9.x before 9.25 allows remote attackers to cause a denial of service (CPU consumption) via a crafted bitmap (BMP) file that triggers a large number of calculations and checks.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-189","CWE-399"],"references":["http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00001.html","http://secunia.com/advisories/28314","http://securityreason.com/securityalert/3482","http://www.securityfocus.com/archive/1/484605/100/200/threaded","http://www.securityfocus.com/bid/26721"],"products":["opera:opera_browser"],"source":"nvd","synced_at":"2026-10-19T19:49:50.107194424+00:00"},"epss":{"cve":"CVE-2007-6523","score":0.02055,"percentile":0.81289,"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."]}