{"id":"CVE-2026-129450","kind":"vulnerability","aliases":["CVE-2026-129450"],"related":[],"title":"DrayTek Vigor2960 router: path traversal in web backup lets remote attackers read files","description":"A vulnerability was detected in DrayTek Vigor2960 1.5.1.6. Affected by this issue is the function sub_1E084 of the file /cgi-bin/mainfunction.cgi?action=doWebBackup. The manipulation of the argument option results in path traversal. It is possible to launch the attack remotely. The exploit is now public and may be used. Upgrading to version 1.5.1.7 can resolve this issue. You should upgrade the affected component. 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":"The DrayTek Vigor2960 router firmware 1.5.1.6 has a path traversal flaw in the doWebBackup function of its web management interface, where the option argument is not sanitized. A remote attacker can use it to reach files outside the intended directory on the router, and a public exploit exists.","severity":"critical","cvss":9.9,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["draytek","routers","self-hosted","vendor","vigor2960"],"not_affected_if":["other-firmware-versions"],"how_to_check":"- Check the firmware version in the router's web admin interface; the sources name `1.5.1.6` as affected.\n- Confirm whether the web management interface is reachable from the internet.","fix":"- DrayTek Vigor2960: upgrade to `1.5.1.7`, per the sources. The vendor also says a newer release is planned to resolve the reported issues.","status":"open","published_at":"2026-11-15T12:17:20+00:00","first_seen_at":"2026-11-15T12:35:28+00:00","triaged_at":"2026-11-15T12:36:17+00:00","updated_at":"2026-11-15T12:36:17+00:00","category":"vendor","confidence":0.7,"triage":{"at":"2026-11-15T12:36:17Z","model":"claude-haiku-5-5","output":{"fix":"- DrayTek Vigor2960: upgrade to `1.5.1.7`, per the sources. The vendor also says a newer release is planned to resolve the reported issues.","reach":"internet","title":"DrayTek Vigor2960 router: path traversal in web backup lets remote attackers read files","impact":"medium","summary":"The DrayTek Vigor2960 router firmware 1.5.1.6 has a path traversal flaw in the doWebBackup function of its web management interface, where the option argument is not sanitized. A remote attacker can use it to reach files outside the intended directory on the router, and a public exploit exists.","audience":"businesses","category":"vendor","nicknames":[],"who_cares":["draytek","vigor2960","routers","self-hosted"],"confidence":0.7,"fix_status":"available","needs_auth":"unknown","worst_case":"Remote attacker reads arbitrary files from the router","analyst_note":"Confirm whether authentication is required for /cgi-bin/mainfunction.cgi and whether the admin interface is internet-exposed by default; check DrayTek's advisory for the fixed version and the planned release.","how_to_check":"- Check the firmware version in the router's web admin interface; the sources name `1.5.1.6` as affected.\n- Confirm whether the web management interface is reachable from the internet.","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["other-firmware-versions"],"who_is_affected":"Organisations running DrayTek Vigor2960 routers on firmware 1.5.1.6, especially where the router web admin interface is exposed to the internet. The sources do not say whether non-default settings are needed, so treat the exposure as unknown until the admin interface is checked.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000789,"input_tokens":4661,"output_tokens":645,"severity_before":"critical"},"analyst_status":null,"analyst_note":null,"search":"'-129450':16A,19A '-2026':15A,18A '/cgi-bin/mainfunction.cgi':95C '1.5.1.6':32B,82C,142C '1.5.1.7':128C '1e084':91C '2960':149C 'action':96C 'affect':83C,137C 'anoth':160C 'argument':50B,102C 'attack':11A,56B,114C 'backup':8A 'compon':138C 'cve':14A,17A 'detect':78C 'directori':66B 'dowebbackup':40B,97C 'draytek':1A,20B,28B,80C 'exist':74B 'exploit':73B,117C 'file':13A,62B,94C 'firmwar':31B 'fix':153C 'flaw':37B 'function':41B,89C 'host':24B 'intend':65B 'interfac':46B 'isn':143C 'issu':86C,132C,156C,170C 'latest':146C,151C 'launch':112C 'let':9A 'manag':45B 'mani':154C 'manipul':99C 'may':122C 'one':161C 'option':49B,103C 'outsid':63B 'path':4A,35B,106C 'plan':165C 'possibl':110C 'public':72B,120C 'reach':61B 'read':12A 'recommend':141C 'releas':164C 'remot':10A,55B,115C 'report':171C 'resolv':130C 'result':104C 'router':3A,21B,30B,69B 'sanit':53B 'secur':155C 'self':23B 'self-host':22B 'solv':168C 'sub':90C 'travers':5A,36B,107C 'upgrad':125C,135C 'use':58B,124C 'vendor':25B,140C 'version':127C,147C,152C 'vigor2960':2A,26B,29B,81C 'vulner':76C 'web':7A,44B","nicknames":[],"mitigations":[],"who_affected":"Organisations running DrayTek Vigor2960 routers on firmware 1.5.1.6, especially where the router web admin interface is exposed to the internet. The sources do not say whether non-default settings are needed, so treat the exposure as unknown until the admin interface is checked.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["critical","draytek","routers","selfhosted","vendor","vigor2960"],"campaign_type":null,"search_a":"'-129450':16A,19A '-2026':15A,18A 'attack':11A 'backup':8A 'cve':14A,17A 'draytek':1A 'file':13A 'let':9A 'path':4A 'read':12A 'remot':10A 'router':3A 'travers':5A 'vigor2960':2A 'web':7A","search_b":"'1.5.1.6':32B 'argument':50B 'attack':56B 'directori':66B 'dowebbackup':40B 'draytek':20B,28B 'exist':74B 'exploit':73B 'file':62B 'firmwar':31B 'flaw':37B 'function':41B 'host':24B 'intend':65B 'interfac':46B 'manag':45B 'option':49B 'outsid':63B 'path':35B 'public':72B 'reach':61B 'remot':55B 'router':21B,30B,69B 'sanit':53B 'self':23B 'self-host':22B 'travers':36B 'use':58B 'vendor':25B 'vigor2960':26B,29B 'web':44B","search_c":"'/cgi-bin/mainfunction.cgi':95C '1.5.1.6':82C,142C '1.5.1.7':128C '1e084':91C '2960':149C 'action':96C 'affect':83C,137C 'anoth':160C 'argument':102C 'attack':114C 'compon':138C 'detect':78C 'dowebbackup':97C 'draytek':80C 'exploit':117C 'file':94C 'fix':153C 'function':89C 'isn':143C 'issu':86C,132C,156C,170C 'latest':146C,151C 'launch':112C 'mani':154C 'manipul':99C 'may':122C 'one':161C 'option':103C 'path':106C 'plan':165C 'possibl':110C 'public':120C 'recommend':141C 'releas':164C 'remot':115C 'report':171C 'resolv':130C 'result':104C 'secur':155C 'solv':168C 'sub':90C 'travers':107C 'upgrad':125C,135C 'use':124C 'vendor':140C 'version':127C,147C,152C 'vigor2960':81C 'vulner':76C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-15T12:17:20+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-2026-129450","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-129450","severity":null,"published_at":"2026-11-15T12:17:20+00:00","modified_at":"2026-11-15T12:17:21+00:00","first_seen_at":"2026-11-15T12:35:28+00:00","fetched_at":"2026-11-15T12:35:28+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"}