CVE-2020-6019
CVE-2020-6019 is a high-severity vulnerability in Valvesoftware Game Networking Sockets with a CVSS 3.x base score of 7.5. 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-248.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 3% (85th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-248
- Affected product: Valvesoftware Game Networking Sockets
- Published:
- Last modified:
Description
Valve's Game Networking Sockets prior to version v1.2.0 improperly handles inlined statistics messages in function CConnectionTransportUDPBase::Received_Data(), leading to an exception thrown from libprotobuf and resulting in a crash.
Frequently asked questions
- What is CVE-2020-6019?
- Valve's Game Networking Sockets prior to version v1.2.0 improperly handles inlined statistics messages in function CConnectionTransportUDPBase::Received_Data(), leading to an exception thrown from libprotobuf and resulting in a crash.
- How severe is CVE-2020-6019?
- CVE-2020-6019 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-6019 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-6019?
- CVE-2020-6019 affects Valvesoftware Game Networking Sockets. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-6019?
- 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-2020-6019 published?
- CVE-2020-6019 was published on 2020-11-13 and last updated on 2026-06-17.
References
- https://github.com/ValveSoftware/GameNetworkingSockets/commit/d944a10808891d202bb1d5e1998de6e0423af678
- https://research.checkpoint.com/2020/game-on-finding-vulnerabilities-in-valves-steam-sockets/
Affected products (1)
- cpe:2.3:a:valvesoftware:game_networking_sockets:*:*:*:*:*:*:*:*
More vulnerabilities in Valvesoftware Game Networking Sockets
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