{"id":"CVE-2026-114044","kind":"vulnerability","aliases":["CVE-2026-114044"],"related":[],"title":"FreeRDP Android client: malicious server can read heap memory out of bounds","description":"FreeRDP before 3.32.1 contains a heap out-of-bounds read vulnerability in the Android client that allows malicious RDP servers to read beyond surface buffers by supplying unvalidated mappedWidth and mappedHeight values. Attackers can send a crafted RDPGFX_MAP_SURFACE_TO_WINDOW_PDU with oversized dimensions, causing android_UpdateWindowFromSurface to copy heap memory beyond the allocation, leading to crashes or memory disclosure.","summary":"FreeRDP before 3.32.1 Android client trusts mappedWidth and mappedHeight values from an RDP server without validation. A malicious server can send an oversized RDPGFX_MAP_SURFACE_TO_WINDOW_PDU, causing the client to copy heap memory past its buffer, leading to crashes or memory disclosure.","severity":"medium","cvss":6.9,"epss":0.0025,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["android","freerdp","package","rdp","remote-desktop"],"not_affected_if":["desktop-only-builds","trusted-servers-only"],"how_to_check":"- Check the FreeRDP version in use with `xfreerdp /version` or the app's about screen; affected builds are before `3.32.1`.\n- Confirm whether the Android client build includes the vulnerable android_UpdateWindowFromSurface code path (unknown from sources).","fix":"- Upgrade FreeRDP to `3.32.1` or later and rebuild or update the Android client.","status":"open","published_at":"2026-10-21T01:17:26+00:00","first_seen_at":"2026-10-23T21:57:27+00:00","triaged_at":"2026-10-25T03:40:16+00:00","updated_at":"2026-10-25T03:40:16+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-25T03:40:16Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade FreeRDP to `3.32.1` or later and rebuild or update the Android client.","reach":"network","title":"FreeRDP Android client: malicious server can read heap memory out of bounds","impact":"medium","summary":"FreeRDP before 3.32.1 Android client trusts mappedWidth and mappedHeight values from an RDP server without validation. A malicious server can send an oversized RDPGFX_MAP_SURFACE_TO_WINDOW_PDU, causing the client to copy heap memory past its buffer, leading to crashes or memory disclosure.","category":"package","nicknames":[],"who_cares":["freerdp","android","rdp","remote-desktop"],"confidence":0.6,"needs_auth":"no","worst_case":"Malicious server reads client heap memory, causing crashes or disclosure","analyst_note":"","how_to_check":"- Check the FreeRDP version in use with `xfreerdp /version` or the app's about screen; affected builds are before `3.32.1`.\n- Confirm whether the Android client build includes the vulnerable android_UpdateWindowFromSurface code path (unknown from sources).","needs_analyst":false,"not_affected_if":["desktop-only-builds","trusted-servers-only"],"who_is_affected":"Teams that ship or use the FreeRDP Android client to connect to RDP servers. The flaw is triggered by a malicious or compromised RDP server, so exposure depends on whether users connect to untrusted servers. Desktop-only deployments and users who only connect to trusted servers are less exposed.","user_interaction":"unknown","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.000634,"input_tokens":3439,"output_tokens":581,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-114044':15A,18A '-2026':14A,17A '3.32.1':28B,73C 'alloc':127C 'allow':88C 'android':2A,19B,29B,85C,119C 'attack':104C 'beyond':94C,125C 'bound':12A,80C 'buffer':64B,96C 'caus':55B,118C 'client':3A,30B,57B,86C 'contain':74C 'copi':59B,122C 'craft':108C 'crash':67B,130C 'cve':13A,16A 'desktop':25B 'dimens':117C 'disclosur':70B,133C 'freerdp':1A,20B,26B,71C 'heap':8A,60B,76C,123C 'lead':65B,128C 'malici':4A,43B,89C 'map':50B,110C 'mappedheight':34B,102C 'mappedwidth':32B,100C 'memori':9A,61B,69B,124C,132C 'out-of-bound':77C 'overs':48B,116C 'packag':21B 'past':62B 'pdu':54B,114C 'rdp':22B,38B,90C 'rdpgfx':49B,109C 'read':7A,81C,93C 'remot':24B 'remote-desktop':23B 'send':46B,106C 'server':5A,39B,44B,91C 'suppli':98C 'surfac':51B,95C,111C 'trust':31B 'unvalid':99C 'updatewindowfromsurfac':120C 'valid':41B 'valu':35B,103C 'vulner':82C 'window':53B,113C 'without':40B","nicknames":[],"mitigations":[],"who_affected":"Teams that ship or use the FreeRDP Android client to connect to RDP servers. The flaw is triggered by a malicious or compromised RDP server, so exposure depends on whether users connect to untrusted servers. Desktop-only deployments and users who only connect to trusted servers are less exposed.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-21T01:17:26+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/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","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-114044","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114044","severity":null,"published_at":"2026-10-21T01:17:26+00:00","modified_at":"2026-10-22T15:44:59+00:00","first_seen_at":"2026-10-23T21:57:27+00:00","fetched_at":"2026-10-23T22:29:01+00:00","note":null},{"source":"epss","external_id":"CVE-2026-114044","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-114044","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-24T13:15:55+00:00","fetched_at":"2026-10-24T13:15:55+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}