{"id":"CVE-2026-102815","kind":"vulnerability","aliases":["CVE-2026-102815"],"related":[],"title":"TP-Link RE305 V3: local command injection in tmpServer gives root","description":"An\noperating-system command injection vulnerability exists in the tmpServer\nservice of TP-Link RE305 V3. The service runs with root privileges and listens\non the local loopback interface. A local attacker with access to a\nlow-privileged process on the device may submit a crafted request to the TDDPv1\nservice and execute operating-system commands with root privileges.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow a local attacker with low privileges to obtain root\nprivileges and execute arbitrary operating-system commands on the affected\ndevice.","summary":"The tmpServer service on the TP-Link RE305 V3 range extender passes crafted requests to the operating system without checking them, so commands run. A local attacker with a low-privileged foothold on the device can send such a request to the TDDPv1 service and run commands as root.","severity":"medium","cvss":6.9,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["embedded","infrastructure","iot","re305","routers","tp-link"],"not_affected_if":["not-re305-v3"],"how_to_check":"- Compare the firmware version on the device admin page with the vendor's advisory; the sources do not name affected versions: unknown\n- Check whether the device is still on the RE305 V3 hardware revision: unknown","fix":"- Update the RE305 V3 to the latest firmware from TP-Link; the fixed version is not named in the sources: unknown\n- Keep the device off untrusted local networks and limit who can reach it on the LAN until patched","status":"open","published_at":"2026-10-27T18:17:30+00:00","first_seen_at":"2026-10-27T18:32:58+00:00","triaged_at":"2026-10-27T18:34:41+00:00","updated_at":"2026-10-27T18:34:41+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-27T18:34:41Z","model":"claude-haiku-5-5","output":{"fix":"- Update the RE305 V3 to the latest firmware from TP-Link; the fixed version is not named in the sources: unknown\n- Keep the device off untrusted local networks and limit who can reach it on the LAN until patched","reach":"local","title":"TP-Link RE305 V3: local command injection in tmpServer gives root","impact":"high","summary":"The tmpServer service on the TP-Link RE305 V3 range extender passes crafted requests to the operating system without checking them, so commands run. A local attacker with a low-privileged foothold on the device can send such a request to the TDDPv1 service and run commands as root.","category":"infrastructure","nicknames":[],"who_cares":["tp-link","re305","routers","iot","embedded"],"confidence":0.6,"needs_auth":"yes","worst_case":"Attacker runs arbitrary commands as root on the extender","analyst_note":"Sources give only the NVD entry; check the TP-Link security advisory for affected firmware versions and the fixed build.","how_to_check":"- Compare the firmware version on the device admin page with the vendor's advisory; the sources do not name affected versions: unknown\n- Check whether the device is still on the RE305 V3 hardware revision: unknown","needs_analyst":true,"not_affected_if":["not-re305-v3"],"who_is_affected":"Only RE305 V3 range extenders are named. The flaw needs a process on the device, not a remote attacker: the service listens on loopback, so the exposure is a foothold already inside the extender. Home and small-office users who run the RE305 V3 should update; teams that do not run this hardware can skip it.","user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000633,"input_tokens":3379,"output_tokens":591,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-102815':15A,18A '-2026':14A,17A 'access':113C 'affect':164C 'allow':144C 'arbitrari':157C 'attack':54B,111C,147C 'check':47B 'command':7A,50B,75B,82C,137C,161C 'craft':40B,126C 'cve':13A,16A 'devic':63B,122C,165C 'embed':19B 'execut':133C,156C 'exist':85C 'exploit':142C 'extend':38B 'foothold':60B 'give':11A 'infrastructur':20B 'inject':8A,83C 'interfac':108C 'iot':21B 'link':3A,26B,34B,93C 'listen':103C 'local':6A,53B,106C,110C,146C 'loopback':107C 'low':58B,117C,149C 'low-privileg':57B,116C 'may':123C,143C 'obtain':152C 'oper':44B,80C,135C,159C 'operating-system':79C,134C,158C 'pass':39B 'privileg':59B,101C,118C,140C,150C,154C 'process':119C 'rang':37B 're305':4A,22B,35B,94C 'request':41B,68B,127C 'root':12A,77B,100C,139C,153C 'router':23B 'run':51B,74B,98C 'send':65B 'servic':29B,72B,89C,97C,131C 'submit':124C 'success':141C 'system':45B,81C,136C,160C 'tddpv1':71B,130C 'tmpserver':10A,28B,88C 'tp':2A,25B,33B,92C 'tp-link':1A,24B,32B,91C 'v3':5A,36B,95C 'vulner':84C 'without':46B","nicknames":[],"mitigations":[],"who_affected":"Only RE305 V3 range extenders are named. The flaw needs a process on the device, not a remote attacker: the service listens on loopback, so the exposure is a foothold already inside the extender. Home and small-office users who run the RE305 V3 should update; teams that do not run this hardware can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T18:17:30+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/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":"f23511db-6c3e-4e32-a477-6aa17d310630","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-102815","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102815","severity":null,"published_at":"2026-10-27T18:17:30+00:00","modified_at":"2026-10-27T18:17:30+00:00","first_seen_at":"2026-10-27T18:32:58+00:00","fetched_at":"2026-10-27T18:32:58+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"}