{"id":"CVE-2020-35198","aliases":["EUVD-2020-22885","GHSA-jv4r-hc9x-r99x"],"status":"published","title":"An issue was discovered in Wind River VxWorks 7. The memory allocator has a possible integer...","description":"An issue was discovered in Wind River VxWorks 7. The memory allocator has a possible integer overflow in calculating a memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.02491,"percentile":0.84785,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2021-05-12T10:55:47Z","modified":"2026-06-17T03:13:30Z","products":[{"vendor":"oracle","product":"communications_eagle"},{"vendor":"windriver","product":"vxworks"}],"references":[{"url":"https://support2.windriver.com/index.php?page=security-notices","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support2.windriver.com/index.php?page=cve\u0026on=view\u0026id=CVE-2020-35198","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-35198"},{"url":"https://github.com/advisories/GHSA-jv4r-hc9x-r99x"}],"sources":{"cve":[{"id":"CVE-2020-35198","description":"An issue was discovered in Wind River VxWorks 7. The memory allocator has a possible integer overflow in calculating a memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.","status":"published","published":"2021-05-12T10:55:47Z","modified":"2024-08-04T17:02:06.842Z","updated_at":"2026-11-02T14:35:57.975444Z"}],"euvd":[{"id":"EUVD-2020-22885","description":"An issue was discovered in Wind River VxWorks 7. The memory allocator has a possible integer overflow in calculating a memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.","status":"published","published":"2021-05-12T10:55:47Z","modified":"2024-08-04T17:02:06Z","updated_at":"2026-11-03T03:07:06.885366Z"}],"ghsa":[{"id":"GHSA-jv4r-hc9x-r99x","title":"An issue was discovered in Wind River VxWorks 7. The memory allocator has a possible integer...","description":"An issue was discovered in Wind River VxWorks 7. The memory allocator has a possible integer overflow in calculating a memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.","status":"published","published":"2022-05-24T19:02:16Z","modified":"2023-01-29T05:07:37Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:46:10.663769Z"}],"nvd":[{"id":"CVE-2020-35198","description":"An issue was discovered in Wind River VxWorks 7. The memory allocator has a possible integer overflow in calculating a memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.","status":"published","published":"2021-05-12T11:15:07.837Z","modified":"2026-06-17T03:13:30.547Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:06:39.25999Z"}]}}