{"id":"CVE-2026-6067","summary":"CVE-2026-6067","details":"A heap buffer overflow vulnerability exists in the Netwide Assembler (NASM) due to a lack of bounds checking in the obj_directive() function. This vulnerability can be exploited by a user assembling a malicious .asm file, potentially leading to heap memory corruption, denial of service (crash), and arbitrary code execution.","modified":"2026-09-08T11:45:31.101065917Z","published":"2026-04-10T13:30:26.140Z","related":["SUSE-SU-2026:3178-1","openSUSE-SU-2026:11217-1","openSUSE-SU-2026:21333-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6067.json","cna_assigner":"certcc"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6067.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6067"},{"type":"REPORT","url":"https://github.com/netwide-assembler/nasm/issues/203"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/netwide-assembler/nasm","events":[{"introduced":"b1ee0338a3f8027cf6886ca21ee31d444c615373"},{"last_affected":"b1ee0338a3f8027cf6886ca21ee31d444c615373"}],"database_specific":{"source":["AFFECTED_FIELD","CPE_STRING"],"cpe":"cpe:2.3:a:nasm:netwide_assembler:3.02:rc5:*:*:*:*:*:*","extracted_events":[{"introduced":"nasm-3.02rc5"},{"last_affected":"nasm-3.02rc5"},{"introduced":"3.02-rc5"},{"last_affected":"3.02-rc5"}]}}],"versions":["3.02-rc5","nasm-3.02rc5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6067.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}