{"id":"CVE-2023-49554","aliases":["AZL-33357","AZL-35393","DEBIAN-CVE-2023-49554","EUVD-2023-53511","GHSA-4x52-4p76-xv6v","UBUNTU-CVE-2023-49554"],"status":"published","title":"Use After Free vulnerability in YASM 1.3.0.86.g9def allows a remote attacker to cause a denial of...","description":"Use After Free vulnerability in YASM 1.3.0.86.g9def allows a remote attacker to cause a denial of service via the do_directive function in the modules/preprocs/nasm/nasm-pp.c component.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00398,"percentile":0.3432,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2024-01-02T00:00:00Z","modified":"2026-11-05T05:40:51Z","affected":[{"source":"osv","ecosystem":"Azure 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