Vulnerability in Wondertrader
CVE-2026-19037
A weakness has been identified in WonderTrader up to 0.9.9. This vulnerability affects the function MatchEngine::update_lob of the file src/WtBtCore/MatchEngine.cpp of the component Internal Limit Order Book Cache Handler. This manipulation causes enforcement of behavioral workflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (30.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Wondertrader — versions 0.9.0, 0.9.1, 0.9.2
Weakness classification (CWE)
References
- my.feishu.cn/wiki/BXljwvHSLiiqiSkI7jScIqkSn4c (exploit)
- vuldb.com/cve/CVE-2026-19037 (third-party-advisory)
- vuldb.com/submit/863755 (third-party-advisory)
- vuldb.com/vuln/386456 (technical-description, vdb-entry)
- vuldb.com/vuln/386456/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-19037?
- CVE-2026-19037 is a medium-severity vulnerability in Wondertrader, classified under CWE-840. CVSS score: 4.3/10. Published 2026-08-06.
- How severe is CVE-2026-19037?
- Medium severity. CVSS v3 base score is 4.3 out of 10.