{"id":"CVE-2019-20172","aliases":["EUVD-2019-10727","GHSA-rf88-p934-8hgp"],"status":"published","title":"Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with...","description":"Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with pointers into the kernel-only virtual address space, which allows local users to gain privileges by overwriting a return address that was found on the kernel stack.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00475,"percentile":0.4129,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2019-12-31T02:50:35Z","modified":"2026-06-17T02:30:09Z","products":[{"vendor":"serenityos","product":"serenityos"}],"references":[{"url":"https://github.com/SerenityOS/serenity/commit/0fc24fe2564736689859e7edfa177a86dac36bf9","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://github.com/Fire30/CTF-WRITEUPS/tree/master/36c3_ctf/wisdom","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-20172"},{"url":"https://github.com/advisories/GHSA-rf88-p934-8hgp"}],"sources":{"cve":[{"id":"CVE-2019-20172","description":"Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with pointers into the kernel-only virtual address space, which allows local users to gain privileges by overwriting a return address that was found on the kernel stack.","status":"published","published":"2019-12-31T02:50:35Z","modified":"2024-08-05T02:39:09.881Z","updated_at":"2026-11-02T14:20:17.431882Z"}],"euvd":[{"id":"EUVD-2019-10727","description":"Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with pointers into the kernel-only virtual address space, which allows local users to gain privileges by overwriting a return address that was found on the kernel stack.","status":"published","published":"2019-12-31T02:50:35Z","modified":"2024-08-05T02:39:09Z","updated_at":"2026-11-03T02:40:22.702411Z"}],"ghsa":[{"id":"GHSA-rf88-p934-8hgp","title":"Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with...","description":"Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with pointers into the kernel-only virtual address space, which allows local users to gain privileges by overwriting a return address that was found on the kernel stack.","status":"published","published":"2022-05-24T17:05:26Z","modified":"2023-02-02T05:03:02Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:51:33.40906Z"}],"nvd":[{"id":"CVE-2019-20172","description":"Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with pointers into the kernel-only virtual address space, which allows local users to gain privileges by overwriting a return address that was found on the kernel stack.","status":"published","published":"2019-12-31T03:15:10.467Z","modified":"2026-06-17T02:30:09.397Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:05:41.313583Z"}]}}