{"id":"CVE-2026-115495","kind":"vulnerability","aliases":["CVE-2026-115495"],"related":[],"title":"WatchGuard Mobile VPN Windows client leaks VPN credentials over loopback","description":"Cleartext Transmission of Sensitive Information vulnerability in the WatchGuard Mobile VPN with SSL client for Windows allows a local attacker who can capture loopback traffic to obtain the user’s VPN username and password.","summary":"The WatchGuard Mobile VPN with SSL client for Windows sends sensitive data over loopback in cleartext. A local attacker who can capture loopback traffic on the same machine can read the user's VPN username and password.","severity":"medium","cvss":5.7,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["endpoint","infrastructure","vpn","watchguard","windows"],"not_affected_if":["no-watchguard-client","single-user-endpoint"],"how_to_check":"- Check the installed WatchGuard Mobile VPN with SSL client version on Windows machines against the fixed version in the vendor advisory (unknown in sources)\n- Confirm whether untrusted local users or processes run on the same endpoint","fix":"- Update WatchGuard Mobile VPN with SSL client for Windows to a fixed release (version unknown in sources)\n- Rotate VPN passwords on endpoints where the client was used on a shared machine","status":"open","published_at":"2026-10-27T16:17:30+00:00","first_seen_at":"2026-10-27T16:33:07+00:00","triaged_at":"2026-10-27T16:34:27+00:00","updated_at":"2026-10-27T16:34:27+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-27T16:34:27Z","model":"claude-haiku-5-5","output":{"fix":"- Update WatchGuard Mobile VPN with SSL client for Windows to a fixed release (version unknown in sources)\n- Rotate VPN passwords on endpoints where the client was used on a shared machine","reach":"local","title":"WatchGuard Mobile VPN Windows client leaks VPN credentials over loopback","impact":"medium","summary":"The WatchGuard Mobile VPN with SSL client for Windows sends sensitive data over loopback in cleartext. A local attacker who can capture loopback traffic on the same machine can read the user's VPN username and password.","category":"infrastructure","nicknames":[],"who_cares":["windows","watchguard","vpn","endpoint"],"confidence":0.6,"needs_auth":"yes","worst_case":"VPN username and password readable by a local attacker","analyst_note":"Find the WatchGuard advisory for CVE-2026-115495 to get affected and fixed client versions and the exact loopback port involved.","how_to_check":"- Check the installed WatchGuard Mobile VPN with SSL client version on Windows machines against the fixed version in the vendor advisory (unknown in sources)\n- Confirm whether untrusted local users or processes run on the same endpoint","needs_analyst":true,"not_affected_if":["no-watchguard-client","single-user-endpoint"],"who_is_affected":"Windows endpoints running the WatchGuard Mobile VPN with SSL client. The exposure requires a local attacker who can capture loopback traffic on that machine, so shared or multi-user Windows hosts carry the most risk. Machines where only the administrator uses the client and no untrusted local code runs are less exposed.","user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000634,"input_tokens":3302,"output_tokens":608,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-115495':13A,16A '-2026':12A,15A 'allow':75C 'attack':40B,78C 'captur':43B,81C 'cleartext':37B,59C 'client':5A,28B,72C 'credenti':8A 'cve':11A,14A 'data':33B 'endpoint':17B 'inform':63C 'infrastructur':18B 'leak':6A 'local':39B,77C 'loopback':10A,35B,44B,82C 'machin':49B 'mobil':2A,24B,68C 'obtain':85C 'password':58B,92C 'read':51B 'send':31B 'sensit':32B,62C 'ssl':27B,71C 'traffic':45B,83C 'transmiss':60C 'user':53B,87C 'usernam':56B,90C 'vpn':3A,7A,19B,25B,55B,69C,89C 'vulner':64C 'watchguard':1A,20B,23B,67C 'window':4A,21B,30B,74C","nicknames":[],"mitigations":[],"who_affected":"Windows endpoints running the WatchGuard Mobile VPN with SSL client. The exposure requires a local attacker who can capture loopback traffic on that machine, so shared or multi-user Windows hosts carry the most risk. Machines where only the administrator uses the client and no untrusted local code runs are less exposed.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T16:17:30+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/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":"5d1c2695-1a31-4499-88ae-e847036fd7e3","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-115495","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115495","severity":null,"published_at":"2026-10-27T16:17:30+00:00","modified_at":"2026-10-27T16:17:30+00:00","first_seen_at":"2026-10-27T16:33:07+00:00","fetched_at":"2026-10-27T16:33:07+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"}