CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2020-36406
High (8.8) in uwebsockets project uwebsockets. EPSS 1.5% chance of exploitation in the next 30 days.
uWebSockets 18.11.0 and 18.12.0 has a stack-based buffer overflow in uWS::TopicTree::trimTree (called from uWS::TopicTree::unsubscribeAll). NOTE: the vendor's position is that this is "a minor issue or not even an issue at all" because the developer of an application (that uses uWebSockets) should not be allowing the large number of triggered topics to accumulate
Severity
- EPSS
- 1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-10-31)
- CWE
- CWE-787
- Published
- Modified
- Record from
- the NVD, synced
Affected
- uwebsockets_project:uwebsockets
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25381
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/uwebsockets/OSV-2020-1695.yaml
- https://github.com/uNetworking/uWebSockets/commit/03fca626a95130ab80f86adada54b29d27242759
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25381
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/uwebsockets/OSV-2020-1695.yaml