Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/87342?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/87342?format=api", "vulnerability_id": "VCID-jhgz-qc5e-3ugy", "summary": "vsftpd: backdoor which opens a shell on port 6200/tcp", "aliases": [ { "alias": "CVE-2011-2523" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/942355?format=api", "purl": "pkg:deb/debian/vsftpd@0?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/vsftpd@0%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/942356?format=api", "purl": "pkg:deb/debian/vsftpd@3.0.3-12?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-u8aq-2qhu-gff5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/vsftpd@3.0.3-12%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/942354?format=api", "purl": "pkg:deb/debian/vsftpd@3.0.3-13?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-u8aq-2qhu-gff5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/vsftpd@3.0.3-13%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/942358?format=api", "purl": "pkg:deb/debian/vsftpd@3.0.5-0.2?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/vsftpd@3.0.5-0.2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/942357?format=api", "purl": "pkg:deb/debian/vsftpd@3.0.5-0.5?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/vsftpd@3.0.5-0.5%3Fdistro=trixie" } ], "affected_packages": [], "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2011-2523.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.1", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2011-2523.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2011-2523", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.94265", "scoring_system": "epss", "scoring_elements": "0.99935", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.94265", "scoring_system": "epss", "scoring_elements": "0.99936", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.94265", "scoring_system": "epss", "scoring_elements": "0.99937", "published_at": "2026-05-14T12:55:00Z" }, { "value": "0.94265", "scoring_system": "epss", "scoring_elements": "0.99938", "published_at": "2026-05-09T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2011-2523" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1778781", "reference_id": "1778781", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1778781" }, { "reference_url": "https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/unix/remote/49757.py", "reference_id": "CVE-2011-2523", "reference_type": "exploit", "scores": [], "url": "https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/unix/remote/49757.py" }, { "reference_url": "https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/unix/remote/17491.rb", "reference_id": "OSVDB-73573;CVE-2011-2523", "reference_type": "exploit", "scores": [], "url": "https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/unix/remote/17491.rb" } ], "weaknesses": [ { "cwe_id": 78, "name": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "description": "The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component." } ], "exploits": [ { "date_added": "2011-07-05", "description": "vsftpd 2.3.4 - Backdoor Command Execution (Metasploit)", "required_action": null, "due_date": null, "notes": null, "known_ransomware_campaign_use": true, "source_date_published": "2011-07-05", "exploit_type": "remote", "platform": "unix", "source_date_updated": "2021-04-12", "data_source": "Exploit-DB", "source_url": "" }, { "date_added": null, "description": "This module exploits a malicious backdoor that was added to the VSFTPD download\n archive. This backdoor was introduced into the vsftpd-2.3.4.tar.gz archive between\n June 30th 2011 and July 1st 2011 according to the most recent information\n available. This backdoor was removed on July 3rd 2011.", "required_action": null, "due_date": null, "notes": "Reliability:\n - unknown-reliability\nStability:\n - unknown-stability\nSideEffects:\n - unknown-side-effects\n", "known_ransomware_campaign_use": false, "source_date_published": "2011-07-03", "exploit_type": null, "platform": "Linux,Unix", "source_date_updated": null, "data_source": "Metasploit", "source_url": "https://github.com/rapid7/metasploit-framework/tree/master/modules/exploits/unix/ftp/vsftpd_234_backdoor.rb" } ], "severity_range_score": "8.1 - 8.1", "exploitability": null, "weighted_severity": null, "risk_score": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-jhgz-qc5e-3ugy" }