{"id":"CVE-2026-33957","aliases":["EUVD-2026-77160","GHSA-4cjw-7m6g-3q48"],"status":"published","title":"An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting...","description":"An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting oversized shared memory from the custos_iwc device enables out-of-bounds read and write, potentially leading to memory corruption or information leakage.","severity":{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00127,"percentile":0.0242,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2026-09-14T00:00:00Z","modified":"2026-09-22T19:56:19Z","products":[{"vendor":"samsung","product":"exynos 1580 firmware"}],"references":[{"url":"https://semiconductor.samsung.com/support/quality-support/product-security-updates/"},{"url":"https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2026-33957/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33957"},{"url":"https://semiconductor.samsung.com/support/quality-support/product-security-updates"},{"url":"https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2026-33957"},{"url":"https://github.com/advisories/GHSA-4cjw-7m6g-3q48"}],"sources":{"cve":[{"id":"CVE-2026-33957","description":"An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting oversized shared memory from the custos_iwc device enables out-of-bounds read and write, potentially leading to memory corruption or information leakage.","status":"published","published":"2026-09-14T00:00:00Z","modified":"2026-09-14T18:14:04.557Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:20:08.009733Z"}],"euvd":[{"id":"EUVD-2026-77160","description":"An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting oversized shared memory from the custos_iwc device enables out-of-bounds read and write, potentially leading to memory corruption or information leakage.","status":"published","published":"2026-09-14T00:00:00Z","modified":"2026-09-14T18:14:04Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T17:28:19.730872Z"}],"ghsa":[{"id":"GHSA-4cjw-7m6g-3q48","title":"An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting...","description":"An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting oversized shared memory from the custos_iwc device enables out-of-bounds read and write, potentially leading to memory corruption or information leakage.","status":"published","published":"2026-09-14T03:30:21Z","modified":"2026-09-14T03:30:29Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:L","level":"medium"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:11:47.913221Z"}],"nvd":[{"id":"CVE-2026-33957","description":"An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting oversized shared memory from the custos_iwc device enables out-of-bounds read and write, potentially leading to memory corruption or information leakage.","status":"published","published":"2026-09-14T02:17:14.39Z","modified":"2026-09-22T19:56:19.073Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:12:46.980627Z"}]}}