CVE-2020-7949 json
schemasystem.dll in Valve Dota 2 before 7.23f allows remote attackers to achieve code execution or denial of service by creating a gaming s…
published 2020-01-27 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-28871
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.2%
- EPSS 4.2% chance of exploitation in 30 days, percentile 90%
- public exploits
- 1
- Exploit-DB
Summary
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.
Patch / fix
- valvesoftware dota_2 7.23f
Timeline
- Published
- First public exploit (EDB-48031)
Exploit prediction
4.17% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-48031 Dota 2 7.23f - Denial of Service (PoC) dos, 2020-02-10
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
References
-
github.com
/bi7s/CVE/tree/master/CVE-2020-7949
third-party-advisory
Sources
- CVE List CVE-2020-7949
- NVD CVE-2020-7949
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.