Vulnerability · CVE-2026-6069
NASM’s disasm() function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when exceeds the…
Published Apr 10, 2026 · catalog updated Jun 17, 2026 · netwide assembler
Last checked Oct 28, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-6069. EPSS is 0.44%. Act only if a listed version of netwide assembler is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2026-6068 · Critical
- CVE-2026-6067 · Medium
- Severity
- High7.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.44%
- Remediation
- Not established
- Affected products
- cpe nasm/netwide assembler
NASM’s disasm() function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when exceeds the buffer capacity.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe nasm/netwide assembler3.02
How to fix CVE-2026-6069
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in 3.02
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-6069. EPSS is 0.44%. Act only if a listed version of netwide assembler is installed.
Which versions are affected?
Compare what you have installed with nasm/netwide assembler 3.02. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-787: Out-of-bounds Write. EPSS 0.44%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Apr 10, 2026 · NIST NVD
Detected
NASM’s disasm() function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when exceeds the buffer capacity.
Jun 17, 2026 · NIST NVD
Updated
NASM’s disasm() function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when exceeds the buffer capacity.
Sources
- CVE.orgVulnerability recordCVE-2026-6069
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-6069
30-day exploitation probability 0.44%
first.org - NIST NVDVulnerability recordCVE-2026-6069
NASM’s disasm() function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when exceeds the buffer capacity.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 28, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 28, 2026
- CVE.orgOct 16, 2026
- NIST NVDOct 15, 2026