Cyber Resilience

CVE-2021-42988

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 0.0008 22.7th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-42988 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Eltima Usb Network Gate. Its CVSS base score is 8.8 (High).

Operationally, ranked at the 22.7th 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

Eltima USB Network Gate is affected by Buffer Overflow. IOCTL Handler 0x22001B in the USB Network Gate above 7.0.1370 below 9.2.2420 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and…

more

OS 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

eltima
usb network gate
7.0.1370 — 9.2.2420

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References