CVE-2026-79298CWE-693

CVE-2026-79298

High · published September 16, 2026

CVSS v3.1
8.4
EPSS
0%
Percentile
8.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.4 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00192 · 8.4th percentile
Weakness
CWE-693 · Protection Mechanism Failure
Published
2026-09-16T23:17Z
References (3)
https://github.com/TheMalwareGuardian/CVE-2026-79298 · [email protected]https://github.com/TheMalwareGuardian/UEFI-Security-Research-Howyar-SysReturn-NetCopy · [email protected]https://github.com/TheMalwareGuardian/UEFI-Security-Research-Howyar-SysReturn-NetCopy · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 18 SEP 04:01Z
    EPSS moved — → 0%
    epss
  • 16 SEP 00:00Z
    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…
    cvelistv5