CVE-2020-37168
📛 CVE Title
(no title)
Description
Ecommerce Systempay 1.0 contains a weak cryptographic implementation vulnerability that allows attackers to brute force the 16-character production secret key used for payment signature generation. Attackers can extract payment form data and signatures from POST requests to the payment endpoint, then use SHA1 hash comparison to iteratively test key candidates until discovering the correct production key, enabling them to forge valid payment signatures and manipulate transaction amounts.
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- critical
- CVSS score
- 9.8 / 10
- CVSS vector
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Effective score
- 9.8 / 10 CRITICAL source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- —
- Last updated
- —
- Source
- https://www.tenable.com/cve/CVE-2020-37168
- Linked Threat
- CVE-2020-37168 — CVE-2020-37168
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-05-13 16:16:31 UTC
- NVD last modified
- 2026-05-13 17:07:21 UTC
- NVD CVSS v3.1
- 9.8 / 10 CRITICAL source: disclosure@vulncheck.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Exploitability subscore
- 3.9 / 10
- Impact subscore
- 5.9 / 10
- EPSS score
- 0.0002 (probability of exploitation in next 30 days)
- EPSS percentile
- 6.93% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD-assigned CWE(s):
CWE-328
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-05-25 00:00 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2020-31214 - Assigner
- VulnCheck
- Published
- May 13, 2026, 2:22:27 PM
- Updated
- May 14, 2026, 1:35:20 PM
- EUVD base score (CVSS 4.0)
-
9.3 / 10
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - EUVD-reported EPSS
- 0.0200
- Vendors
- Paiement
- Products
-
Ecommerce Systempay (1.0)
ENISA description: Ecommerce Systempay 1.0 contains a weak cryptographic implementation vulnerability that allows attackers to brute force the 16-character production secret key used for payment signature generation. Attackers can extract payment form data and signatures from POST requests to the payment endpoint, then use SHA1 hash comparison to iteratively test key candidates until discovering the correct production key, enabling them to forge valid payment signatures and manipulate transaction amounts.
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
Web references (7)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://nvd.nist.gov/vuln/detail/CVE-2020-37168 tenable:nvd.nist.gov
- https://paiement.systempay.fr/doc/fr-FR/ tenable:paiement.systempay.fr
- https://paiement.systempay.fr/doc/fr-FR/module-de-paiement-gratuit/ tenable:paiement.systempay.fr
- https://www.cve.org/CVERecord?id=CVE-2020-37168 tenable:www.cve.org
- https://www.exploit-db.com/exploits/48017 tenable:www.exploit-db.com
- https://www.first.org/epss/ tenable:www.first.org
- https://www.vulncheck.com/advisories/ecommerce-systempay-production-key-brute-force tenable:www.vulncheck.com
NVD-tagged references (4)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://paiement.systempay.fr/doc/fr-FR/ disclosure@vulncheck.com
- https://paiement.systempay.fr/doc/fr-FR/module-de-paiement-gratuit/ disclosure@vulncheck.com
- https://www.exploit-db.com/exploits/48017 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/ecommerce-systempay-production-key-brute-force disclosure@vulncheck.com
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:access.redhat.com
Learn about our open source products, services, and company. You are here
2026-05-26 02:52 UTC -
web:arstechnica.com
Google publishes exploit code threatening millions of Chromium users Google publishes exploit code before patch , reported 42 months earlier, is fixed.
2026-05-26 02:52 UTC -
web:cyberpress.org
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026.
2026-05-26 02:52 UTC -
web:petri.com
How to Fix Issues Caused by Windows Cumulative Updates using Known Issue Rollback (Image Credit: Microsoft) KIR works at the code level.
2026-05-26 02:52 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-05-26 02:52 UTC -
web:support.servicenow.com
Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...
2026-05-26 02:52 UTC -
web:www.cisa.gov
If vulnerabilities cannot be remediated within the recommended timeframes, develop a remediation plan for action and coordination across the organization. The remediation plan should include: Vulnerability remediation constraints Interim mitigation actions to overcome constraints Final actions required to remediate vulnerability
2026-05-26 02:52 UTC -
web:www.howtogeek.com
In this case, use your PC's built-in Windows Update troubleshooter to automatically find and fix issues with your updates. Only a little interaction is required from your end. To run that tool, go to Settings > Update & Security > Troubleshoot > Additional Troubleshooters > Windows Update and click "Run the Troubleshooter".
2026-05-26 02:52 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-05-26 02:52 UTC -
web:www.virustotal.com
Streamline your investigations with Google Threat Intelligence Agentic and the new Dark Web (DDW) module. Perform hunting and pivoting across forums using natural language or specific modifiers. Bridge threat actor identities and map global operations easy.
2026-05-26 02:52 UTC
AI Forensic Analysis
Only Available for Registered Users. Sign in to view.