{"cve":"CVE-2007-2765","nvd":{"published":"2007-05-18T22:30:00.000","modified":"2026-06-16T22:40:16.527","status":"Modified","description":"blockhosts.py in BlockHosts before 2.0.3 does not properly parse daemon log files, which allows remote attackers to add arbitrary deny entries to the /etc/hosts.allow file and cause a denial of service by adding arbitrary IP addresses to a daemon log file, as demonstrated by logging in through ssh using a login name containing certain strings with an IP address, which is not properly handled by a regular expression, a related issue to CVE-2006-6301.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://osvdb.org/36516","http://secunia.com/advisories/25352","http://www.aczoom.com/tools/blockhosts/CHANGES","http://www.securityfocus.com/bid/24090","http://www.vupen.com/english/advisories/2007/1906"],"products":["ac_zoom:blockhosts"],"source":"nvd","synced_at":"2026-10-19T19:46:28.846926071+00:00"},"epss":{"cve":"CVE-2007-2765","score":0.01531,"percentile":0.7477,"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."]}