CVE-2026-6069 | NASM Netwide Assembler 3.02rc5 disasm stack-based overflow

VDB-356818 · CVE-2026-6069 · GCVE-0-2026-6069 NASM NETWIDE ASSEMBLER 3.02RC5 DISASM STACK-BASED OVERFLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.3 $0-$5k 2.13+ Summaryinfo A vulnerability classified as critical was found in NASM Netwide Assembler 3.02rc5. Affected by this vulnerability is the function disasm. Executing a manipulation can lead to stack-based overflow. This vulnerability appears as CVE-2026-6069. The attack requires local access. There is no available exploit. Detailsinfo A vulnerability has been found in NASM Netwide Assembler 3.02rc5 and classified as critical. This vulnerability affects the function disasm. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes: NASM’s disasm() function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when `slen` exceeds the buffer capacity. The advisory is available at github.com. This vulnerability was named CVE-2026-6069 since 04/10/2026. The exploitation appears to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/10/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type Programming Tool Software Vendor NASM Name Netwide Assembler Version 3.02rc5 License open-source CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.3 VulDB Meta Temp Score: 5.3 VulDB Base Score: 5.3 VulDB Temp Score: 5.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Stack-based overflow CWE: CWE-121 / CWE-119 CAPEC: 🔒 ATT&CK: 🔒 Physical: Partially Local: Yes Remote: No Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/10/2026 Advisory disclosed 04/10/2026 +0 days CVE reserved 04/10/2026 +0 days VulDB entry created 04/10/2026 +0 days VulDB entry last update Sourcesinfo Advisory: github.com Status: Confirmed CVE: CVE-2026-6069 (🔒) GCVE (CVE): GCVE-0-2026-6069 GCVE (VulDB): GCVE-100-356818 Entryinfo Created: 04/10/2026 15:54 Changes: 04/10/2026 15:54 (54) Complete: 🔍 Cache ID: 99:E88:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸