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CRITICAL

CVE-2020-6016

CVSS v3

9.8

CRITICAL

EPSS Score

6.6 %

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

Valve's Game Networking Sockets prior to version v1.2.0 improperly handles unreliable segments with negative offsets in function SNP_ReceiveUnreliableSegment(), leading to a Heap-Based Buffer Underflow and a free() of memory not from the heap, resulting in a memory corruption and probably even a remote code execution.

Technical details

Published
2020-11-18

Frequently asked questions

What is CVE-2020-6016?

Valve's Game Networking Sockets prior to version v1.2.0 improperly handles unreliable segments with negative offsets in function SNP_ReceiveUnreliableSegment(), leading to a Heap-Based Buffer Underflow and a free() of memory not from the heap, resulting in a memory corruption and probably even a remote code execution.

Is CVE-2020-6016 actively exploited?

Active exploitation of CVE-2020-6016 has not been confirmed. The EPSS score is 6.6%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-6016?

CVE-2020-6016 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2020-6016 affecting your environment?

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