{"apiVersion":"1.0","identifier":"CVE-2026-55648","description":"FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, freerdp_image_copy_from_icon_data in libfreerdp/codec/color.c calculates nWidth multiplied by nHeight multiplied by FreeRDPGetBytesPerPixel(format) in 32-bit arithmetic. A malicious RDP server can send a RAIL TS_ICON_INFO update with dimensions such as 32768 by 32768 and 32 bits per pixel so the required-size calculation wraps, bypassing the cbBitsColor source bounds check before freerdp_image_copy_no_overlap reads attacker-controlled icon data. This affects RemoteApp clients using the vulnerable library path, while xfreerdp has a caller-side mitigation. This issue is fixed in version 3.27.0.","publishedAt":"2026-08-19T18:16:45","lastModifiedAt":"2026-08-21T22:16:41","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55648","cvssScore":6.1,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/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":0.00401,"riskScore":0.63,"affectedProduct":"FreeRDP","affectedVersions":"<3.27.0","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-55648","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-55648","en":"https://www.redsauce.net/en/cves/CVE-2026-55648","fr":"https://www.redsauce.net/fr/cves/CVE-2026-55648","pt":"https://www.redsauce.net/pt/cves/CVE-2026-55648","de":"https://www.redsauce.net/de/cves/CVE-2026-55648","sk":"https://www.redsauce.net/sk/cves/CVE-2026-55648","el":"https://www.redsauce.net/el/cves/CVE-2026-55648"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-55648"}}