CVE-2020-6016
moderate-risk
Published 2020-11-18
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.
Do I need to act?
~
6.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (1)
Game Networking Sockets
Affected Vendors
References (4)
46
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
9/34 · Low
Exposure
5/34 · Minimal