synced 5 MIN AGO
01 Record

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

UnratedPUBLISHEDCNA: checkpoint
CNA base scoreUnratedNo CNA CVSS vector

02 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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
6.00% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 93.1% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-11-18 14:11Z5 YR AGO
Last updated
2024-08-04 08:47Z2 YR AGO
Reserved
2020-01-07
Assigning CNA
checkpoint
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-590Free of Memory not on the HeapVariant
  • CWE-787Out-of-bounds WriteBase
Data version
5.1
Document digest
01533802ffd8215df1214a9bf9bc7ad716ab5dded81b14e1212af9dffe9380c4

05 Affected products

VendorProductVersionsPlatforms
n/aGame Networking SocketsAll versions prior to v1.2.0—

06 References