{"id":"CVE-2026-129451","kind":"vulnerability","aliases":["CVE-2026-129451"],"related":[],"title":"DrayTek Vigor2960 router: path traversal in guest export lets attackers read files","description":"A flaw has been found in DrayTek Vigor2960 up to 1.5.1.6. This affects the function app_guest_export of the file /cgi-bin/mainfunction.cgi. This manipulation of the argument filename causes path traversal. The attack can be initiated remotely. The exploit has been published and may be used. Upgrading to version 1.5.1.7 is able to mitigate this issue. The affected component should be upgraded. The vendor recommends: \"1.5.1.6 isn't the latest version of 2960, the latest version fixes many security issues. And we have another one in our release plan which should solve the issues reported.\"","summary":"DrayTek Vigor2960 routers up to firmware 1.5.1.6 have a path traversal flaw in the app_guest_export function of /cgi-bin/mainfunction.cgi, where the filename argument is not sanitized. A remote attacker can use it to reach files outside the intended directory, and a public exploit has been published.","severity":"critical","cvss":9.9,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["draytek","network-gear","routers","vendor","vigor2960"],"not_affected_if":["firmware-1.5.1.7-or-later","management-not-internet-exposed","other-draytek-models"],"how_to_check":"- Check the firmware version on the router's admin page and confirm whether it is `1.5.1.6` or earlier.\n- Look for the path `/cgi-bin/mainfunction.cgi` exposed to the internet on the router's management interface.","fix":"- DrayTek Vigor2960: upgrade to `1.5.1.7` (per the NVD description). The vendor's statement says `1.5.1.6` is not the latest and a further release is planned.","status":"open","published_at":"2026-11-15T13:16:58+00:00","first_seen_at":"2026-11-15T13:36:04+00:00","triaged_at":"2026-11-15T13:36:23+00:00","updated_at":"2026-11-15T13:36:23+00:00","category":"vendor","confidence":0.7,"triage":{"at":"2026-11-15T13:36:23Z","model":"claude-haiku-5-5","output":{"fix":"- DrayTek Vigor2960: upgrade to `1.5.1.7` (per the NVD description). The vendor's statement says `1.5.1.6` is not the latest and a further release is planned.","reach":"internet","title":"DrayTek Vigor2960 router: path traversal in guest export lets attackers read files","impact":"high","summary":"DrayTek Vigor2960 routers up to firmware 1.5.1.6 have a path traversal flaw in the app_guest_export function of /cgi-bin/mainfunction.cgi, where the filename argument is not sanitized. A remote attacker can use it to reach files outside the intended directory, and a public exploit has been published.","audience":"businesses","category":"vendor","nicknames":[],"who_cares":["draytek","vigor2960","routers","network-gear"],"confidence":0.7,"fix_status":"available","needs_auth":"unknown","worst_case":"remote attacker reads arbitrary files from the router","analyst_note":"Confirm whether the web management interface is reachable by default and whether authentication is required; the vendor's 1.5.1.7 fix claim is sourced only from the NVD description.","how_to_check":"- Check the firmware version on the router's admin page and confirm whether it is `1.5.1.6` or earlier.\n- Look for the path `/cgi-bin/mainfunction.cgi` exposed to the internet on the router's management interface.","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["other-draytek-models","firmware-1.5.1.7-or-later","management-not-internet-exposed"],"who_is_affected":"Organisations running DrayTek Vigor2960 routers on firmware 1.5.1.6 or earlier, especially with the web management interface reachable from the internet. The sources do not say whether the flaw is reachable on default settings. Teams without Vigor2960 units can skip it.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000814,"input_tokens":4650,"output_tokens":698,"severity_before":"critical"},"analyst_status":null,"analyst_note":null,"search":"'-129451':15A,18A '-2026':14A,17A '/cgi-bin/mainfunction.cgi':45B,94C '1.5.1.6':32B,83C,138C '1.5.1.7':122C '2960':145C 'abl':124C 'affect':85C,130C 'anoth':156C 'app':40B,88C 'argument':49B,99C 'attack':10A,55B,105C 'caus':101C 'compon':131C 'cve':13A,16A 'directori':65B 'draytek':1A,19B,26B,79C 'exploit':69B,111C 'export':8A,42B,90C 'file':12A,61B,93C 'filenam':48B,100C 'firmwar':31B 'fix':149C 'flaw':37B,74C 'found':77C 'function':43B,87C 'gear':22B 'guest':7A,41B,89C 'initi':108C 'intend':64B 'isn':139C 'issu':128C,152C,166C 'latest':142C,147C 'let':9A 'mani':150C 'manipul':96C 'may':116C 'mitig':126C 'network':21B 'network-gear':20B 'one':157C 'outsid':62B 'path':4A,35B,102C 'plan':161C 'public':68B 'publish':72B,114C 'reach':60B 'read':11A 'recommend':137C 'releas':160C 'remot':54B,109C 'report':167C 'router':3A,23B,28B 'sanit':52B 'secur':151C 'solv':164C 'travers':5A,36B,103C 'upgrad':119C,134C 'use':57B,118C 'vendor':24B,136C 'version':121C,143C,148C 'vigor2960':2A,25B,27B,80C","nicknames":[],"mitigations":[],"who_affected":"Organisations running DrayTek Vigor2960 routers on firmware 1.5.1.6 or earlier, especially with the web management interface reachable from the internet. The sources do not say whether the flaw is reachable on default settings. Teams without Vigor2960 units can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["critical","draytek","networkgear","routers","vendor","vigor2960"],"campaign_type":null,"search_a":"'-129451':15A,18A '-2026':14A,17A 'attack':10A 'cve':13A,16A 'draytek':1A 'export':8A 'file':12A 'guest':7A 'let':9A 'path':4A 'read':11A 'router':3A 'travers':5A 'vigor2960':2A","search_b":"'/cgi-bin/mainfunction.cgi':45B '1.5.1.6':32B 'app':40B 'argument':49B 'attack':55B 'directori':65B 'draytek':19B,26B 'exploit':69B 'export':42B 'file':61B 'filenam':48B 'firmwar':31B 'flaw':37B 'function':43B 'gear':22B 'guest':41B 'intend':64B 'network':21B 'network-gear':20B 'outsid':62B 'path':35B 'public':68B 'publish':72B 'reach':60B 'remot':54B 'router':23B,28B 'sanit':52B 'travers':36B 'use':57B 'vendor':24B 'vigor2960':25B,27B","search_c":"'/cgi-bin/mainfunction.cgi':94C '1.5.1.6':83C,138C '1.5.1.7':122C '2960':145C 'abl':124C 'affect':85C,130C 'anoth':156C 'app':88C 'argument':99C 'attack':105C 'caus':101C 'compon':131C 'draytek':79C 'exploit':111C 'export':90C 'file':93C 'filenam':100C 'fix':149C 'flaw':74C 'found':77C 'function':87C 'guest':89C 'initi':108C 'isn':139C 'issu':128C,152C,166C 'latest':142C,147C 'mani':150C 'manipul':96C 'may':116C 'mitig':126C 'one':157C 'path':102C 'plan':161C 'publish':114C 'recommend':137C 'releas':160C 'remot':109C 'report':167C 'secur':151C 'solv':164C 'travers':103C 'upgrad':119C,134C 'use':118C 'vendor':136C 'version':121C,143C,148C 'vigor2960':80C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-15T13:16:58+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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":"cna@vuldb.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-129451","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-129451","severity":null,"published_at":"2026-11-15T13:16:58+00:00","modified_at":"2026-11-15T13:16:59+00:00","first_seen_at":"2026-11-15T13:36:04+00:00","fetched_at":"2026-11-15T13:36:04+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}