What is CVE-2021-42993?

CVE-2021-42993 is a high-severity vulnerability in Flexihub, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2021-12-07.

How severe is CVE-2021-42993?

High severity. CVSS v3 base score is 8.8 out of 10.

Integer overflow in Flexihub

CVE-2021-42993

FlexiHub For Windows is affected by Integer Overflow. IOCTL Handler 0x22001B in the FlexiHub For Windows above 2.0.4340 below 5.3.14268 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

Vulnerability class: Integer Overflow

EPSS: 0.005 (38.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Flexihub
Microsoft Windows
N/a — versions n/a

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

cve@mitre.org (Technical Description, Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-42993?: CVE-2021-42993 is a high-severity vulnerability in Flexihub, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2021-12-07.
How severe is CVE-2021-42993?: High severity. CVSS v3 base score is 8.8 out of 10.