# CVE-2026-120232: Horizon DataSys Reboot Restore Standard Kernel Driver shield.sys sub_23908 memory corruption

Status: published. Published: 2026-11-01. Updated: 2026-11-02.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Horizon DataSys / Reboot Restore Standard: 13.0 (affected); 13.1 (affected); 13.2 (affected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 9.3 (critical); 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; source: CNA: VulDB

- CVSS 3.1: 8.8 (high); 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; source: CNA: VulDB

- CVSS 3.0: 8.8 (high); 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; source: CNA: VulDB

- CVSS 2.0: 6.8 (medium); AV:L/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:C; source: CNA: VulDB

- CVSS 4.0: 8.5 (high); 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; source: NVD: cna@vuldb.com

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H; source: NVD: cna@vuldb.com

- CVSS 2.0: 6.8 (medium); AV:L/AC:L/Au:S/C:C/I:C/A:C; source: NVD: cna@vuldb.com

- CISA KEV: No listing in collected sources

- EPSS: 0.23% as of 2026-11-02; percentile 13.86%

- SSVC: exploitation poc; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-119

## Exploit evidence

- exploit: https://gist.github.com/Element2023H/a176865b1f4015e003620154f3ba103c (CNA: VulDB)

## References

- https://vuldb.com/vuln/429591 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/429591/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-120232 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/1001497 (CNA: VulDB; third-party-advisory)

- https://gist.github.com/Element2023H/a176865b1f4015e003620154f3ba103c (CNA: VulDB; exploit)

- https://gist.github.com/Element2023H/a176865b1f4015e003620154f3ba103c (cna@vuldb.com)

- https://vuldb.com/cve/CVE-2026-120232 (cna@vuldb.com)

- https://vuldb.com/submit/1001497 (cna@vuldb.com)

- https://vuldb.com/vuln/429591 (cna@vuldb.com)

- https://vuldb.com/vuln/429591/cti (cna@vuldb.com)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-120232; retrieved 2026-11-02; source updated 2026-11-02

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-120232; retrieved 2026-11-02; source updated 2026-11-01

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-120232; retrieved 2026-11-02; source updated Not reported

Revision: fc50662271e7740d2290c116ce43cdfcb9b251e131614ca8ddfba079c37fb2d6

Canonical: https://y2.dev/cve/CVE-2026-120232

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