{"id":"CVE-2025-6273","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-6273","generatedAt":"2026-10-28T07:25:58.623Z","title":"A vulnerability was found in WebAssembly wabt up to 1.0.37 and classified as problematic.","description":"A vulnerability was found in WebAssembly wabt up to 1.0.37 and classified as problematic. This issue affects the function LogOpcode of the file src/binary-reader-objdump.cc. The manipulation leads to reachable assertion. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The code maintainer explains that this issue might not affect \"real world wasm programs\".","published":"2025-06-19T19:15:22.000Z","lastModified":"2026-06-17T10:01:30.000Z","status":"Analyzed","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"4.0","score":1.9,"severity":"LOW","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-617"],"affected":["webassembly/wabt"],"epss":{"score":0.00235,"percentile":0.14366,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/WebAssembly/wabt/issues/2574","tags":["Exploit","Issue Tracking","Vendor Advisory"],"source":"cna@vuldb.com"},{"url":"https://github.com/user-attachments/files/19529411/wabt_crash.txt","tags":["Exploit"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?ctiid.313277","tags":["Permissions Required","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?id.313277","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?submit.593010","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://github.com/WebAssembly/wabt/issues/2574","tags":["Exploit","Issue Tracking","Vendor Advisory"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-6273","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}