[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2025-21689":6},{"stargazers_count":4,"fetched_at":5},7,"2026-07-31T03:17:55.401Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":21,"related":22,"reserved_at":9,"published_at":23,"modified_at":24,"state":9,"summary":25,"references_raw":27,"kevs":34,"epss":9,"epss_history":35,"metrics":36,"affected":43},"DEBIAN-CVE-2025-21689","In the Linux kernel, the following vulnerability has been resolved:  USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb()  This patch addresses a null-ptr-deref in qt2_process_read_urb() due to an incorrect bounds check in the following:         if (newport > serial->num_ports) {                dev_err(&port->dev,                        \"%s - port change to invalid port: %i\\n\",                        __func__, newport);                break;        }  The condition doesn't account for the valid range of the serial->port buffer, which is from 0 to serial->num_ports - 1. When newport is equal to serial->num_ports, the assignment of \"port\" in the following code is out-of-bounds and NULL:         serial_priv->current_port = newport;        port = serial->port[serial_priv->current_port];  The fix checks if newport is greater than or equal to serial->num_ports indicating it is out-of-bounds.",null,[],[],[],[14],{"_key":15},"CVE-2025-21689",[17,19],{"_key":18},"DLA-4075-1",{"_key":20},"DLA-4076-1",[],[],"2025-02-10T16:15:38.447Z","2026-06-15T19:05:20.396079836Z",{"cisa_kev":26,"cisa_ransomware":26,"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,[28],{"url":29,"sources":30,"tags":32},"https://security-tracker.debian.org/tracker/CVE-2025-21689",[31],"osv_debian",[33],"Advisory",[],[],[37],{"source":31,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":38,"cvss_v4_0":9},{"baseScore":39,"baseSeverity":9,"vectorString":40,"impactScore":41,"exploitabilityScore":42},5.5,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",6,4.6,[44,63],{"ecosystem":45,"name":46,"vendor":47,"product":46,"cpe_part":9,"purl_type":48,"purl_namespace":47,"purl_name":46,"source":9,"versions":49},"Debian","linux","debian","deb",[50,56,59,62],{"version":51,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":55,"fixed_in":9},"lt5_10_234_1",true,"ecosystem","5.10.234-1","excluding",{"version":57,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":58,"version_end_type":55,"fixed_in":9},"lt6_1_128_1","6.1.128-1",{"version":60,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":61,"version_end_type":55,"fixed_in":9},"lt6_12_12_1","6.12.12-1",{"version":60,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":61,"version_end_type":55,"fixed_in":9},{"ecosystem":45,"name":64,"vendor":47,"product":64,"cpe_part":9,"purl_type":48,"purl_namespace":47,"purl_name":64,"source":9,"versions":65},"linux-6.1",[66],{"version":67,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":68,"version_end_type":55,"fixed_in":9},"lt6_1_128_1~deb11u1","6.1.128-1~deb11u1"]