[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-USN-6492-1":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-05T08:55:32.481Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":38,"duplicates":39,"related":40,"reserved_at":9,"published_at":47,"modified_at":48,"state":9,"summary":49,"references_raw":51,"kevs":83,"epss":9,"epss_history":84,"metrics":85,"affected":86},"USN-6492-1","mosquitto vulnerabilities\n\nKathrin Kleinhammer discovered that Mosquitto incorrectly handled certain\ninputs. If a user or an automated system were provided with a specially crafted\ninput, a remote attacker could possibly use this issue to cause a denial of\nservice. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-34431)\n\nZhanxiang Song discovered that Mosquitto incorrectly handled certain inputs. If\na user or an automated system were provided with a specially crafted input, a\nremote attacker could possibly use this issue to cause an authorisation bypass.\nThis issue only affected Ubuntu 22.04 LTS and Ubuntu 23.04. (CVE-2021-34434)\n\nZhanxiang Song, Bin Yuan, DeQing Zou, and Hai Jin discovered that Mosquitto\nincorrectly handled certain inputs. If a user or an automated system were\nprovided with a specially crafted input, a remote attacker could possibly use\nthis issue to cause a denial of service. This issue only affected Ubuntu 20.04\nLTS and Ubuntu 22.04 LTS. (CVE-2021-41039)\n\nZhengjie Du discovered that Mosquitto incorrectly handled certain inputs. If a\nuser or an automated system were provided with a specially crafted input file,\na remote attacker could possibly use this issue to cause a denial of service.\n(CVE-2023-0809)\n\nIt was discovered that Mosquitto incorrectly handled certain inputs. If a user\nor an automated system were provided with a specially crafted input, a remote\nattacker could possibly use this issue to cause a denial of service.\n(CVE-2023-3592)\n\nMischa Bachmann discovered that Mosquitto incorrectly handled certain inputs.\nIf a user or an automated system were provided with a specially crafted input,\na remote attacker could possibly use this issue to cause a denial of service.\nThis issue was only fixed in Ubuntu 22.04 LTS and Ubuntu 23.04.\n(CVE-2023-28366)\n",null,[],[],[],[14,16,18,20,22,24,26,28,30,32,34,36],{"_key":15},"CVE-2021-34431",{"_key":17},"CVE-2021-34434",{"_key":19},"CVE-2021-41039",{"_key":21},"CVE-2023-0809",{"_key":23},"CVE-2023-28366",{"_key":25},"CVE-2023-3592",{"_key":27},"UBUNTU-CVE-2021-34431",{"_key":29},"UBUNTU-CVE-2021-34434",{"_key":31},"UBUNTU-CVE-2021-41039",{"_key":33},"UBUNTU-CVE-2023-0809",{"_key":35},"UBUNTU-CVE-2023-28366",{"_key":37},"UBUNTU-CVE-2023-3592",[],[],[41,42,43,44,45,46],{"_key":27},{"_key":29},{"_key":31},{"_key":33},{"_key":35},{"_key":37},"2023-11-21T15:23:51Z","2026-04-22T10:41:36.101799Z",{"cisa_kev":50,"cisa_ransomware":50,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[52,58,63,67,71,75,79],{"url":53,"sources":54,"tags":56},"https://ubuntu.com/security/notices/USN-6492-1",[55],"osv_ubuntu",[57],"Advisory",{"url":59,"sources":60,"tags":61},"https://ubuntu.com/security/CVE-2021-34431",[55],[62],"REPORT",{"url":64,"sources":65,"tags":66},"https://ubuntu.com/security/CVE-2021-34434",[55],[62],{"url":68,"sources":69,"tags":70},"https://ubuntu.com/security/CVE-2021-41039",[55],[62],{"url":72,"sources":73,"tags":74},"https://ubuntu.com/security/CVE-2023-0809",[55],[62],{"url":76,"sources":77,"tags":78},"https://ubuntu.com/security/CVE-2023-3592",[55],[62],{"url":80,"sources":81,"tags":82},"https://ubuntu.com/security/CVE-2023-28366",[55],[62],[],[],[],[87],{"ecosystem":88,"name":89,"vendor":90,"product":89,"cpe_part":9,"purl_type":91,"purl_namespace":90,"purl_name":89,"source":9,"versions":92},"Ubuntu","mosquitto","ubuntu","deb",[93,99],{"version":94,"is_range":95,"range_type":96,"version_start":9,"version_start_type":9,"version_end":97,"version_end_type":98,"fixed_in":9},"lt1_6_9_1ubuntu0_1~esm1",true,"ecosystem","1.6.9-1ubuntu0.1~esm1","excluding",{"version":100,"is_range":95,"range_type":96,"version_start":9,"version_start_type":9,"version_end":101,"version_end_type":98,"fixed_in":9},"lt2_0_11_1ubuntu1_1","2.0.11-1ubuntu1.1"]