PoC Index

CVE-2021-42973

HIGH 8.8EPSS 0.5%

NoMachine Server is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Server above 4.0.346 and below 7.7.4 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.

CVSS v3.1
8.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v2.0
7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS
0.48% chance of exploitation in the next 30 days, 40th percentile
Published
2021-12-07
Updated
2024-08-04

Proof-of-concept exploits (1)

References

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