CVE-2026-120232
Horizon DataSys Reboot Restore Standard Kernel Driver shield.sys sub_23908 memory corruption
- Critical 9.3
- A public exploit reference is listed
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.
Key facts
- Published
- 1 Nov 2026
- Last changed
- 2 Nov 2026
- Assigned by
- VulDB
- EPSS
- 0.23% likely to be exploited in the next 30 days, higher than 13.928% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: poc; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 9.3CVSS 4.0, Criticalfrom the CNA (VulDB)
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 - 8.8CVSS 3.1, Highfrom the CNA (VulDB)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C - 8.8CVSS 3.0, Highfrom the CNA (VulDB)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C - 6.8CVSS 2.0, Mediumfrom the CNA (VulDB)
AV:L/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:C
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Horizon DataSys | Reboot Restore Standard |
|
Timeline
- 31 Oct 2026 Advisory disclosed
- 31 Oct 2026 VulDB entry created
- 31 Oct 2026 VulDB entry last update
- 1 Nov 2026 Published
Weakness
References
- VDB-429591 | Horizon DataSys Reboot Restore Standard Kernel Driver shield.sys sub_23908 memory corruption
- VDB-429591 | CTI Indicators (IOB, IOC, IOA)
- CVE-2026-120232 | CVE Analysis and Report
- Submit #1001497 | Horizon DataSys Reboot Restore Standard v13.2 (and prior) Improper Input Validation
- gist.github.com