{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/70991?format=json","vulnerability_id":"VCID-hrnp-yxss-h3fe","summary":"Heap-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code locally.","aliases":[{"alias":"CVE-2026-26156"}],"fixed_packages":[],"affected_packages":[],"references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-26156","reference_id":"","reference_type":"","scores":[{"value":"0.00144","scoring_system":"epss","scoring_elements":"0.34438","published_at":"2026-06-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-26156"},{"reference_url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26156","reference_id":"CVE-2026-26156","reference_type":"","scores":[{"value":"7.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-04-14T19:24:31Z/"}],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26156"}],"weaknesses":[{"cwe_id":20,"name":"Improper Input Validation","description":"The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly."},{"cwe_id":122,"name":"Heap-based Buffer Overflow","description":"A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc()."},{"cwe_id":125,"name":"Out-of-bounds Read","description":"The product reads data past the end, or before the beginning, of the intended buffer."}],"exploits":[],"severity_range_score":"7.8 - 7.8","exploitability":null,"weighted_severity":null,"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-hrnp-yxss-h3fe"}