netwide assembler vulnerabilities and fixes

Recent CVEs affecting netwide assembler, with upgrade or downgrade steps. 5 tracked.

Also searched as: netwideassembler.

netwide assembler has 5 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 0. Most recent: 2025-08-11. Highest priority: CVE-2025-8846 (score 29/100).

• CVE-2025-8846 MEDIUM 5.3 DOWNGRADE A vulnerability has been found in NASM Netwide Assember 2.17rc0
• CVE-2025-8845 MEDIUM 5.3 DOWNGRADE A vulnerability was identified in NASM Netwide Assember 2.17rc0
• CVE-2025-8844 LOW 3.3 DOWNGRADE A vulnerability was determined in NASM Netwide Assember 2.17rc0
• CVE-2025-8843 MEDIUM 5.3 DOWNGRADE A vulnerability was found in NASM Netwide Assember 2.17rc0
• CVE-2025-8842 MEDIUM 5.3 DOWNGRADE A vulnerability has been found in NASM Netwide Assember 2.17rc0

FAQ

How do I fix netwide assembler vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is netwide assembler being exploited right now?

None of the tracked netwide assembler CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which netwide assembler CVE should I patch first?

CVE-2025-8846 currently ranks highest (29/100): A vulnerability has been found in NASM Netwide Assember 2.17rc0.

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