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Vulnerability record · CVE-2026-79298 · published 16 September 2026

CVE-2026-79298: An issue in Howyar Technologies Inc SysReturn Versions prior to 11.3.034 and fixed in v.11.3.0.34 allows a loc…

An issue in Howyar Technologies Inc SysReturn Versions prior to 11.3.034 and fixed in v.11.3.0.34 allows a local attcker to execute arbitrary code via the BOOTia32.efi and a crafted cloak32.dat file on the ESP.

8.4 CVSS 3.1 High EPSS 0.19% · top 92.0% CWE-693 · CWE-693 Deferred
8.4CVSS 3.1 base score
0.19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
22 Sep 2026Last modified by NVD

Description

An issue in Howyar Technologies Inc SysReturn Versions prior to 11.3.034 and fixed in v.11.3.0.34 allows a local attcker to execute arbitrary code via the BOOTia32.efi and a crafted cloak32.dat file on the ESP.

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://github.com/TheMalwareGuardian/CVE-2026-79298
https://github.com/TheMalwareGuardian/UEFI-Security-Research-Howyar-SysReturn-NetCopy
https://github.com/TheMalwareGuardian/UEFI-Security-Research-Howyar-SysReturn-NetCopy

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Source: NIST National Vulnerability Database (record CVE-2026-79298), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.