{"id":"CVE-2023-26076","aliases":["A-269656642","EUVD-2023-29950","GHSA-64g2-hhj4-h788","PUB-A-269656642"],"status":"published","title":"An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280,...","description":"An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. An intra-object overflow in the 5G SM message codec can occur due to insufficient parameter validation when decoding reserved options.","severity":{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AC:L/AV:N/A:H/C:L/I:L/PR:L/S:U/UI:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00926,"percentile":0.60719,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-120"],"published":"2023-03-13T00:00:00Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":":unknown:","fixed_in":["Pixel-family specific:2023-04-05"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":":unknown:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"Pixel-family specific:0"},{"fixed":"Pixel-family specific:2023-04-05"}]}],"versions":["Pixel-family specific"]}],"products":[{"vendor":"samsung","product":"exynos_1280_firmware"},{"vendor":"samsung","product":"exynos_2200_firmware"},{"vendor":"samsung","product":"exynos_auto_t5123_firmware"},{"vendor":"samsung","product":"exynos_modem_5123_firmware"},{"vendor":"samsung","product":"exynos_modem_5300_firmware"}],"references":[{"url":"https://semiconductor.samsung.com/processor/modem/","tags":["x_transferred","Product"]},{"url":"https://semiconductor.samsung.com/processor/mobile-processor/","tags":["x_transferred","Product"]},{"url":"https://semiconductor.samsung.com/support/quality-support/product-security-updates/","tags":["x_transferred","Vendor Advisory"]},{"url":"https://googleprojectzero.blogspot.com/2023/03/multiple-internet-to-baseband-remote-rce.html","tags":["x_transferred"]},{"url":"http://packetstormsecurity.com/files/171400/Shannon-Baseband-NrSmPcoCodec-Intra-Object-Overflow.html","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26076"},{"url":"https://semiconductor.samsung.com/processor/mobile-processor"},{"url":"https://semiconductor.samsung.com/processor/modem"},{"url":"https://semiconductor.samsung.com/support/quality-support/product-security-updates"},{"url":"https://github.com/advisories/GHSA-64g2-hhj4-h788"},{"url":"https://source.android.com/security/bulletin/2023-04-01","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-26076","description":"An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. An intra-object overflow in the 5G SM message codec can occur due to insufficient parameter validation when decoding reserved options.","status":"published","published":"2023-03-13T00:00:00Z","modified":"2025-03-03T18:06:41.894Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AC:L/AV:N/A:H/C:L/I:L/PR:L/S:U/UI:N","level":"high","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:35:15.066338Z"}],"euvd":[{"id":"EUVD-2023-29950","description":"An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. An intra-object overflow in the 5G SM message codec can occur due to insufficient parameter validation when decoding reserved options.","status":"published","published":"2023-03-13T00:00:00Z","modified":"2025-03-03T18:06:41Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AC:L/AV:N/A:H/C:L/I:L/PR:L/S:U/UI:N","level":"high"}],"updated_at":"2026-11-02T20:53:18.061162Z"}],"ghsa":[{"id":"GHSA-64g2-hhj4-h788","title":"An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280,...","description":"An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. An intra-object overflow in the 5G SM message codec can occur due to insufficient parameter validation when decoding reserved options.","status":"published","published":"2023-03-13T15:30:17Z","modified":"2025-03-03T18:32:20Z","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-120"],"updated_at":"2026-11-02T15:00:07.927723Z"}],"nvd":[{"id":"CVE-2023-26076","description":"An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. An intra-object overflow in the 5G SM message codec can occur due to insufficient parameter validation when decoding reserved options.","status":"published","published":"2023-03-13T15:15:12.72Z","modified":"2026-06-17T05:42:37.79Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"secondary"},{"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"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:07:49.031498Z"}],"osv":[{"id":"PUB-A-269656642","description":"In TBD of TBD, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2023-04-01T00:00:00Z","modified":"2026-11-05T16:32:28.703711716Z","updated_at":"2026-11-05T17:55:17.76362Z"}]}}