Cyber Resilience

CVE-2021-42993

HighPublic PoC

Published: 07 December 2021

Published
07 December 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0006 20.2th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-42993 is a high-severity Integer Overflow or Wraparound (CWE-190) vulnerability in Flexihub Flexihub. Its CVSS base score is 8.8 (High).

Operationally, ranked at the 20.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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…

more

crash) via specially crafted I/O Request Packet.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

flexihub
flexihub
2.0.4340 — 5.3.14268

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References