CVE-2026-6067CVE-2026-6067
Updated under an hour ago ()
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It affects NASM and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 7.5 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- certcc
- NVD analysis
- Analyzed
- Record last updated
- Apr 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
NASM NASM nasm:nasm (from the name) | nasm-3.02rc5 | CNA record |
nasm netwide_assembler nasm:netwide_assembler | 3.02 | NVD |
References
- https://github.com/netwide-assembler/nasm/issues/203exploit, issue-tracking
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.