What is CVE-2020-9345?

CVE-2020-9345 is a medium-severity vulnerability in Microsoft Windows, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2020-03-20.

How severe is CVE-2020-9345?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Microsoft Windows

CVE-2020-9345

An issue was discovered in signotec signoPAD-API/Web (formerly Websocket Pad Server) before 3.1.1 on Windows. It is possible to perform a Denial of Service attack because the application doesn't limit the number of opened WebSocket sockets. If a victim visits an attacker-controlled website, this vulnerability can be exploited.

Published 2020-03-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (58.7th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2019-052.txt (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-9345?: CVE-2020-9345 is a medium-severity vulnerability in Microsoft Windows, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2020-03-20.
How severe is CVE-2020-9345?: Medium severity. CVSS v3 base score is 6.5 out of 10.