{"id":"CVE-2025-29635","kind":"vulnerability","aliases":["CVE-2025-29635"],"related":[],"title":"dlink dir-823x firmware: A command injection vulnerability in D-Link DIR-823X 240126 and 240802 allows an authorized attacker to execute…","description":"D-Link DIR-823X contains a command injection vulnerability that allows an authorized attacker to execute arbitrary commands on remote devices by sending a POST request to /goform/set_prohibiting via the corresponding function. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.\n\nCISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","summary":"D-Link DIR-823X home routers have a command injection flaw in the /goform/set_prohibiting endpoint. An attacker with valid access can run arbitrary commands on the device, and CISA reports it is being exploited in the wild.","severity":"high","cvss":7.2,"epss":null,"exploited":true,"exploited_at":"2026-04-24T00:00:00+00:00","products":[{"name":"D-Link DIR-823X","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"dlink dir-823x firmware","fixed":[],"affected":"= 240126","ecosystem":"vendor"},{"name":"dlink dir-823x firmware","fixed":[],"affected":"= 240802","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["d-link","dir-823x","exploited","infrastructure","routers","small-office"],"not_affected_if":["no-dir-823x-deployed"],"how_to_check":"Check whether any D-Link DIR-823X router is in use on the network, including at remote or branch sites.","fix":"Discontinue use of the device if no vendor mitigation is available, since the product may be end-of-life or end-of-service.\nApply vendor mitigations per D-Link instructions if they exist.","status":"open","published_at":"2025-03-25T14:15:29+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:38:41+00:00","updated_at":"2026-10-23T23:44:51+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T20:38:41Z","model":"claude-haiku-5-5","output":{"fix":"Discontinue use of the device if no vendor mitigation is available, since the product may be end-of-life or end-of-service.\nApply vendor mitigations per D-Link instructions if they exist.","reach":"network","summary":"D-Link DIR-823X home routers have a command injection flaw in the /goform/set_prohibiting endpoint. An attacker with valid access can run arbitrary commands on the device, and CISA reports it is being exploited in the wild.","category":"infrastructure","who_cares":["d-link","dir-823x","routers","small-office"],"confidence":0.6,"needs_auth":"yes","worst_case":"Attacker runs arbitrary commands on the router after authenticating","analyst_note":"Confirm affected firmware versions, fixed firmware availability, and D-Link's EoL advisory via the CISA KEV entry and D-Link security bulletins.","how_to_check":"Check whether any D-Link DIR-823X router is in use on the network, including at remote or branch sites.\nunknown\nunknown","needs_analyst":true,"not_affected_if":["no-dir-823x-deployed"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000469,"input_tokens":2595,"output_tokens":419,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-01':166C '-2025':27A,30A '-29635':28A,31A '/goform/set_prohibiting':75B,128C '22':165C '240126':17A '240802':19A '823x':4A,16A,37A,41A,46A,53B,65B,104C 'access':81B 'action':156C 'allow':20A,111C 'and/or':143C 'appli':157C 'applic':163C 'arbitrari':84B,117C 'attack':23A,78B,114C 'author':22A,113C 'bod':164C 'cisa':90B,154C 'cloud':169C 'command':7A,70B,85B,107C,118C 'contain':105C 'correspond':131C 'could':136C 'cve':26A,29A 'd':12A,33A,49B,61B,100C 'd-link':11A,32A,48B,60B,99C 'devic':88B,121C 'dir':3A,15A,36A,40A,45A,52B,64B,103C 'dir-823x':2A,14A,35A,39A,44A,51B,63B,102C 'discontinu':151C,172C 'dlink':1A,38A,43A 'end':139C,145C 'end-of-lif':138C 'end-of-servic':144C 'endpoint':76B 'eo':148C 'eol':142C 'execut':25A,116C 'exploit':54B,95B 'firmwar':5A 'firmware':42A,47A 'flaw':72B 'follow':162C 'function':132C 'guidanc':167C 'home':66B 'impact':134C 'infrastructur':55B 'inject':8A,71B,108C 'instruct':161C 'life':141C 'link':13A,34A,50B,62B,101C 'mitig':158C,178C 'offic':59B 'per':159C 'post':125C 'product':135C,152C,176C 'remot':120C 'report':91B 'request':126C 'requir':155C 'router':56B,67B 'run':83B 'send':123C 'servic':147C,170C 'small':58B 'small-offic':57B 'unavail':180C 'use':173C 'user':149C 'util':153C 'valid':80B 'vendor':160C 'via':129C 'vulner':9A,109C 'wild':98B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2025-03-25T14:15:29+00:00","kev":{"dateAdded":"2026-04-24","dueDate":"2026-05-08","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cvss_by":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2025-29635","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-29635","severity":null,"published_at":"2026-04-24T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T20:35:31+00:00","note":null},{"source":"nvd","external_id":"CVE-2025-29635","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-29635","severity":null,"published_at":"2025-03-25T14:15:29+00:00","modified_at":"2026-06-17T09:05:33+00:00","first_seen_at":"2026-10-23T23:44:51+00:00","fetched_at":"2026-10-23T23:44:51+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"}