{"id":"CVE-2026-120232","kind":"vulnerability","aliases":["CVE-2026-120232"],"related":[],"title":"Horizon DataSys Reboot Restore Standard: kernel driver memory corruption lets local users escalate","description":"A vulnerability was identified in Horizon DataSys Reboot Restore Standard up to 13.2. The impacted element is the function sub_23908 in the library shield.sys of the component Kernel Driver. Such manipulation leads to memory corruption. The attack can only be performed from a local environment. The exploit is publicly available and might be used. A fix is planned for the upcoming release.","summary":"Horizon DataSys Reboot Restore Standard up to version 13.2 has a memory corruption flaw in the function sub_23908 of its kernel driver library shield.sys. A local user who can run code on the machine may be able to corrupt kernel memory, and a public exploit is said to exist.","severity":"high","cvss":8.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["horizon-datasys","other","reboot-restore-standard","windows"],"not_affected_if":["newer-version","not-installed"],"how_to_check":"- Check whether Reboot Restore Standard is installed and read its version; the sources say versions up to `13.2` are affected.\n- Look for the driver file `shield.sys` on Windows machines running the product.","fix":"- Vendor Horizon DataSys has planned a fix for an upcoming release; no fixed version is named in the sources.","status":"open","published_at":"2026-11-01T15:17:23+00:00","first_seen_at":"2026-11-01T15:20:34+00:00","triaged_at":"2026-11-01T15:22:22+00:00","updated_at":"2026-11-01T15:22:22+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-11-01T15:22:22Z","model":"claude-haiku-5-5","output":{"fix":"- Vendor Horizon DataSys has planned a fix for an upcoming release; no fixed version is named in the sources.","reach":"local","title":"Horizon DataSys Reboot Restore Standard: kernel driver memory corruption lets local users escalate","impact":"high","summary":"Horizon DataSys Reboot Restore Standard up to version 13.2 has a memory corruption flaw in the function sub_23908 of its kernel driver library shield.sys. A local user who can run code on the machine may be able to corrupt kernel memory, and a public exploit is said to exist.","audience":"businesses","category":"other","nicknames":[],"who_cares":["windows","reboot-restore-standard","horizon-datasys"],"confidence":0.6,"fix_status":"none","needs_auth":"yes","worst_case":"local attacker corrupts kernel memory and may gain system-level control","analyst_note":"Confirm the fixed release version and whether a vendor advisory exists beyond the NVD entry; the sources say only that a fix is planned.","how_to_check":"- Check whether Reboot Restore Standard is installed and read its version; the sources say versions up to `13.2` are affected.\n- Look for the driver file `shield.sys` on Windows machines running the product.","plain_action":"","needs_analyst":true,"not_affected_if":["not-installed","newer-version"],"who_is_affected":"Machines running Horizon DataSys Reboot Restore Standard up to version 13.2, where the kernel driver shield.sys is loaded. The sources say the attack needs a local environment, so machines with no local user access are less exposed. Teams without this product can skip it.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000716,"input_tokens":4146,"output_tokens":602,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-120232':16A,19A '-2026':15A,18A '13.2':37B,91C '23908':47B,99C 'abl':66B 'attack':116C 'avail':129C 'code':60B 'compon':106C 'corrupt':9A,41B,68B,114C 'cve':14A,17A 'datasi':2A,22B,30B,85C 'driver':7A,51B,108C 'element':94C 'environ':124C 'escal':13A 'exist':78B 'exploit':74B,126C 'fix':135C 'flaw':42B 'function':45B,97C 'horizon':1A,21B,29B,84C 'horizon-datasi':20B 'identifi':82C 'impact':93C 'kernel':6A,50B,69B,107C 'lead':111C 'let':10A 'librari':52B,102C 'local':11A,55B,123C 'machin':63B 'manipul':110C 'may':64B 'memori':8A,40B,70B,113C 'might':131C 'perform':120C 'plan':137C 'public':73B,128C 'reboot':3A,25B,31B,86C 'reboot-restore-standard':24B 'releas':141C 'restor':4A,26B,32B,87C 'run':59B 'said':76B 'shield.sys':53B,103C 'standard':5A,27B,33B,88C 'sub':46B,98C 'upcom':140C 'use':133C 'user':12A,56B 'version':36B 'vulner':80C 'window':28B","nicknames":[],"mitigations":[],"who_affected":"Machines running Horizon DataSys Reboot Restore Standard up to version 13.2, where the kernel driver shield.sys is loaded. The sources say the attack needs a local environment, so machines with no local user access are less exposed. Teams without this product can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"first_public_at":"2026-11-01T15:17:23+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:L/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-2026-120232","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120232","severity":null,"published_at":"2026-11-01T15:17:23+00:00","modified_at":"2026-11-01T15:17:23+00:00","first_seen_at":"2026-11-01T15:20:34+00:00","fetched_at":"2026-11-01T15:20:34+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"}