{"id":"CVE-2026-22110","kind":"vulnerability","aliases":["CVE-2026-22110"],"related":[],"title":"EV charger web server skips authentication on POST and PUT requests","description":"The web server does not check authentication on POST or PUT. An unauthenticated attacker can reboot the charger; by brute-forcing the configid, they can also set the service password and then change any setting.","summary":"Delta Electronics UFC500 DC fast-charger web server does not check authentication on POST/PUT. An unauthenticated attacker on the adjacent network can reboot the charger and, by brute-forcing the configid, set the service password and change any setting.","severity":"high","cvss":8.7,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Delta UFC500","fixed":["2.4.18"],"affected":"< 2.4.18","ecosystem":"vendor"}],"ecosystems":[],"tags":["delta-electronics","ev-charger","infrastructure","missing-authentication","ufc500","web-interface"],"not_affected_if":["firmware-2.4.18-or-later","unknown","web-interface-not-reachable"],"how_to_check":"Check the UFC500 firmware version in its service/web interface; versions below 2.4.18 are affected. Also confirm whether the web interface is reachable from untrusted networks. Delta's exact guidance unconfirmed.","fix":"Update UFC500 firmware to 2.4.18 or later (per CNA record via OpenCVE; vendor advisory not yet read). A second version line lists 4.4.1; confirm with Delta which applies to your unit.","status":"open","published_at":"2026-10-30T11:17:33+00:00","first_seen_at":"2026-10-30T11:29:51+00:00","triaged_at":"2026-10-30T11:31:21+00:00","updated_at":"2026-10-30T11:32:34+00:00","category":"infrastructure","confidence":0.55,"triage":{"at":"2026-10-30T11:31:21Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"EV charger web server skips authentication on POST and PUT requests","impact":"high","summary":"The charger's web server does not check authentication for POST or PUT requests. An unauthenticated attacker can reboot the charger and, by brute-forcing a config ID, set the service password and change any setting.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["ev-charger","web-interface"],"confidence":0.4,"fix_status":"unknown","needs_auth":"no","worst_case":"Attacker reboots charger and takes over its settings","analyst_note":"Identify the affected charger vendor, models and firmware versions, and the fixed firmware, from the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-22110.","how_to_check":"unknown","plain_action":"","needs_analyst":true,"not_affected_if":["unknown"],"who_is_affected":"Affects EV charging hardware whose web interface is reachable on the network; the sources do not name the vendor, model or firmware range. The exposure depends on whether the charger's web server is reachable from untrusted networks. unknown","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000627,"input_tokens":4063,"output_tokens":441,"severity_before":"high"},"analyst_status":"done","analyst_note":"Identify the affected charger vendor, models and firmware versions, and the fixed firmware, from the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-22110.","search":"'-2026':13A,16A '-22110':14A,17A 'adjac':54B 'also':101C 'attack':51B,88C 'authent':6A,29B,46B,81C 'brute':63B,95C 'brute-forc':62B,94C 'chang':72B,108C 'charger':2A,25B,40B,59B,92C 'check':45B,80C 'configid':66B,98C 'cve':12A,15A 'dc':37B 'delta':18A,21B,34B 'delta-electron':20B 'electron':22B,35B 'ev':1A,24B 'ev-charg':23B 'fast':39B 'fast-charg':38B 'forc':64B,96C 'infrastructur':26B 'interfac':33B 'miss':28B 'missing-authent':27B 'network':55B 'password':70B,105C 'post':8A,83C 'post/put':48B 'put':10A,85C 'reboot':57B,90C 'request':11A 'server':4A,42B,77C 'servic':69B,104C 'set':67B,74B,102C,110C 'skip':5A 'ufc500':19A,30B,36B 'unauthent':50B,87C 'web':3A,32B,41B,76C 'web-interfac':31B","nicknames":[],"mitigations":[],"who_affected":"Affects EV charging hardware whose web interface is reachable on the network; the sources do not name the vendor, model or firmware range. The exposure depends on whether the charger's web server is reachable from untrusted networks. unknown","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"first_public_at":"2026-10-30T11:17:33+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/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":"csirt@divd.nl","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-22110","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22110","severity":null,"published_at":"2026-10-30T11:17:33+00:00","modified_at":"2026-10-30T11:17:33+00:00","first_seen_at":"2026-10-30T11:29:51+00:00","fetched_at":"2026-10-30T11:29:51+00:00","note":null},{"source":"analyst","external_id":"CVE-2026-22110:1147","url":null,"severity":null,"published_at":"2026-10-30T11:32:34+00:00","modified_at":"2026-10-30T11:32:34+00:00","first_seen_at":"2026-10-30T11:32:34+00:00","fetched_at":"2026-10-30T11:32:34+00:00","note":"CNA record (DIVD, via OpenCVE mirror; DIVD and Delta pages not retrievable, DIVD-2026-00012 case page fetched showed unrelated MikroTik content so ignored) names Delta Electronics UFC500 EV charger: firmware < 2.4.18 affected, 2.4.18 unaffected; a second entry lists < 4.4.1 (stream unclear). Vendor advisory not read, nothing verified. Not known exploited, no PoC found."}],"documents":[{"id":23154,"url":"https://app.opencve.io/cve/CVE-2026-22110","title":"OpenCVE: CVE-2026-22110 (mirrors DIVD CNA record)","kind":"other","source":"analyst","publisher":null,"text":null,"published_at":null,"relation":"describes","confidence":null,"note":null}],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}