{"id":"CVE-2026-122148","kind":"vulnerability","aliases":["CVE-2026-122148"],"related":[],"title":"Yealink MeetingBoard Pro: web console check can be bypassed to trigger screenshots","description":"In Yealink MeetingBoard Pro before 331.320.0.64, the Web management module has a front-end validation bypass vulnerability. An attacker with administrator privileges can modify the page DOM to bypass front-end UI control logic and invoke screenshot-related interfaces, triggering the screenshot function by circumventing front-end interface restrictions. Exploitation can occur only when the attacker has a valid administrator account within the local network.","summary":"Yealink MeetingBoard Pro, a meeting room display device, has a web management page that relies on front-end checks to restrict screenshot actions. An administrator on the local network can edit the page to skip those checks and trigger screenshot functions they should not reach.","severity":"high","cvss":8.2,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["collaboration-devices","infrastructure","meetingboard-pro","yealink"],"not_affected_if":["no-admin-exposure","not-deployed"],"how_to_check":"- Identify whether any Yealink MeetingBoard Pro devices are on the network and read their firmware version in the device web console\n- Compare the firmware version against `331.320.0.64`; versions below it are in the affected range\n- Check who holds administrator accounts on the device web management page","fix":"- Yealink MeetingBoard Pro: move to firmware `331.320.0.64` or later","status":"open","published_at":"2026-11-04T19:17:39+00:00","first_seen_at":"2026-11-04T19:28:48+00:00","triaged_at":"2026-11-04T19:30:07+00:00","updated_at":"2026-11-04T19:30:07+00:00","category":"infrastructure","confidence":0.7,"triage":{"at":"2026-11-04T19:30:07Z","model":"claude-haiku-5-5","output":{"fix":"- Yealink MeetingBoard Pro: move to firmware `331.320.0.64` or later","reach":"network","title":"Yealink MeetingBoard Pro: web console check can be bypassed to trigger screenshots","impact":"low","summary":"Yealink MeetingBoard Pro, a meeting room display device, has a web management page that relies on front-end checks to restrict screenshot actions. An administrator on the local network can edit the page to skip those checks and trigger screenshot functions they should not reach.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["yealink","meetingboard-pro","collaboration-devices"],"confidence":0.7,"fix_status":"available","needs_auth":"yes","worst_case":"Admin on the device triggers screenshots despite front-end restrictions","analyst_note":"","how_to_check":"- Identify whether any Yealink MeetingBoard Pro devices are on the network and read their firmware version in the device web console\n- Compare the firmware version against `331.320.0.64`; versions below it are in the affected range\n- Check who holds administrator accounts on the device web management page","plain_action":"","needs_analyst":false,"not_affected_if":["no-admin-exposure","not-deployed"],"who_is_affected":"Only devices running Yealink MeetingBoard Pro firmware before 331.320.0.64 that have a web management interface reachable from the local network are exposed. The attacker must already hold a valid administrator account on the device, so limiting admin accounts and restricting device web access reduces exposure. Teams with no such devices can skip it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000711,"input_tokens":4171,"output_tokens":587,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-122148':15A,18A '-2026':14A,17A '331.320.0.64':78C 'account':137C 'action':50B 'administr':52B,94C,136C 'attack':92C,132C 'bypass':9A,89C,102C 'check':6A,46B,64B 'circumv':120C 'collabor':20B 'collaboration-devic':19B 'consol':5A 'control':107C 'cve':13A,16A 'devic':21B,34B 'display':33B 'dom':100C 'edit':58B 'end':45B,87C,105C,123C 'exploit':126C 'front':44B,86C,104C,122C 'front-end':43B,85C,103C,121C 'function':68B,118C 'infrastructur':22B 'interfac':114C,124C 'invok':110C 'local':55B,140C 'logic':108C 'manag':38B,81C 'meet':31B 'meetingboard':2A,24B,28B,75C 'meetingboard-pro':23B 'modifi':97C 'modul':82C 'network':56B,141C 'occur':128C 'page':39B,60B,99C 'privileg':95C 'pro':3A,25B,29B,76C 'reach':72B 'relat':113C 'reli':41B 'restrict':48B,125C 'room':32B 'screenshot':12A,49B,67B,112C,117C 'screenshot-rel':111C 'skip':62B 'trigger':11A,66B,115C 'ui':106C 'valid':88C,135C 'vulner':90C 'web':4A,37B,80C 'within':138C 'yealink':1A,26B,27B,74C","nicknames":[],"mitigations":[],"who_affected":"Only devices running Yealink MeetingBoard Pro firmware before 331.320.0.64 that have a web management interface reachable from the local network are exposed. The attacker must already hold a valid administrator account on the device, so limiting admin accounts and restricting device web access reduces exposure. Teams with no such devices can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["collaborationdevices","high","infrastructure","meetingboardpro","yealink"],"campaign_type":null,"first_public_at":"2026-11-04T19:17:39+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:L/SC:H/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":"cve@mitre.org","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-122148","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-122148","severity":null,"published_at":"2026-11-04T19:17:39+00:00","modified_at":"2026-11-04T19:17:39+00:00","first_seen_at":"2026-11-04T19:28:48+00:00","fetched_at":"2026-11-04T19:28:48+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"}