{"cve":"CVE-2007-4429","nvd":{"published":"2007-08-20T19:17:00.000","modified":"2026-06-16T22:44:04.877","status":"Modified","description":"Unspecified vulnerability in Skype allows remote attackers to cause a denial of service (server hang) via unknown vectors related to sending long URIs, as claimed to be actively exploited on 20070817 using a \"call to a specific number.\"  NOTE: this identifier is for the en.securitylab.ru disclosure.  According to the vendor, this issue is separate from the \"sign-on issues\" that reduced Skype service on 20070817, which appears to be a site-specific problem.  As of 20070821, it is not clear whether this issue is simply a symptom of the larger sign-on problem.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://blogs.csoonline.com/the_skype_mystery_why_blame_the_august_windows_updates","http://en.securitylab.ru/poc/301420.php","http://en.securitylab.ru/poc/extra/301419.php","http://heartbeat.skype.com/2007/08/what_happened_on_august_16.html","http://heartbeat.skype.com/2007/08/where_we_are_at_1100_gmt.html"],"products":["skype_technologies:skype"],"source":"nvd","synced_at":"2026-10-19T19:48:28.501292361+00:00"},"epss":{"cve":"CVE-2007-4429","score":0.02195,"percentile":0.82474,"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."]}