CVE-2026-6068

EUVD-2026-21380
NASM contains a heap use after free vulnerability in response file (-@) processing where a dangling pointer to freed memory is stored in the global depend_file and later dereferenced, as the response-file buffer is freed before the pointer is used, allowing for data corruption or remote code execution.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 15%
Affected Products (NVD)
VendorProductVersion
nasmnetwide_assembler
3.02:rc5
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
nasm
bookworm
unimportant
bullseye
unimportant
forky
unimportant
sid
unimportant
trixie
unimportant
Common Weakness Enumeration
References
https://github.com/netwide-assembler/nasm/issues/222
https://sekai.team/blog/nasm-cve-disclosure/cve-2026-6068