HIGH

CVE-2020-7949

CVSS v3

7.8

HIGH

EPSS Score

4.2 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2020-7949 yet.

Full record on NVD

Description

schemasystem.dll in Valve Dota 2 before 7.23f allows remote attackers to achieve code execution or denial of service by creating a gaming server and inviting a victim to this server, because a crafted map is mishandled during a GetValue call.

Technical details

Published: 2020-01-27
Exploit-DB: EDB-48031

Frequently asked questions

What is CVE-2020-7949?

Is CVE-2020-7949 actively exploited?

Active exploitation of CVE-2020-7949 has not been confirmed. Its EPSS score was 4.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-7949?

CVE-2020-7949 has a CVSS v3 base score of 7.8 (HIGH severity).

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