{"apiVersion":"1.0","identifier":"CVE-2026-55894","description":"Capstone is a disassembly framework. In 6.0.0-Alpha9 and earlier, Capstone-s arch/SH/SHDisassembler.c sh_disassemble() function computes an idx value from a raw 16-bit instruction without ensuring it is within the active mode-specific decode[] function-pointer table. An application using CS_ARCH_SH with CS_MODE_SH2A or CS_MODE_SH4A and CS_MODE_SHFPU can pass crafted bytecode through cs_disasm_iter() or cs_disasm(), causing the decode[idx] test to read outside the table and terminate the process with a segmentation fault. No code execution or information disclosure was demonstrated. This issue is fixed in version 6.0.0-Alpha10.","publishedAt":"2026-08-20T22:17:22","lastModifiedAt":"2026-08-21T15:16:42","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55894","cvssScore":6.8,"cvssVector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","epssProbability":0.00134,"riskScore":0.69,"affectedProduct":"Capstone","affectedVersions":"<6.0.0-Alpha10","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-55894","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-55894","en":"https://www.redsauce.net/en/cves/CVE-2026-55894","fr":"https://www.redsauce.net/fr/cves/CVE-2026-55894","pt":"https://www.redsauce.net/pt/cves/CVE-2026-55894","de":"https://www.redsauce.net/de/cves/CVE-2026-55894","sk":"https://www.redsauce.net/sk/cves/CVE-2026-55894","el":"https://www.redsauce.net/el/cves/CVE-2026-55894"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-55894"}}