CVE-2020-7951
CVE-2020-7951 is a high-severity vulnerability in Valvesoftware Dota 2 with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 2% (77th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Valvesoftware Dota 2
- Published:
- Last modified:
Description
meshsystem.dll in Valve Dota 2 before 7.23e 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 affected by memory corruption.
Frequently asked questions
- What is CVE-2020-7951?
- meshsystem.dll in Valve Dota 2 before 7.23e 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 affected by memory corruption.
- How severe is CVE-2020-7951?
- CVE-2020-7951 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-7951 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-7951?
- CVE-2020-7951 affects Valvesoftware Dota 2. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-7951?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-7951 published?
- CVE-2020-7951 was published on 2020-01-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:valvesoftware:dota_2:*:*:*:*:*:*:*:*
More vulnerabilities in Valvesoftware Dota 2
- CVE-2020-9005 — High (CVSS 7.8): meshsystem.dll in Valve Dota 2 through 2020-02-17 allows remote attackers to achieve code execution or denial of…
- CVE-2020-7952 — High (CVSS 7.8): rendersystemdx9.dll in Valve Dota 2 before 7.23f allows remote attackers to achieve code execution or denial of service…
- CVE-2020-7950 — High (CVSS 7.8): meshsystem.dll in Valve Dota 2 before 7.23f allows remote attackers to achieve code execution or denial of service by…
- CVE-2020-7949 — High (CVSS 7.8): schemasystem.dll in Valve Dota 2 before 7.23f allows remote attackers to achieve code execution or denial of service by…
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