CVE-2020-3938Network attack vector

Server file disclosure via forged server-side requests

Published Feb 4, 2020 · Updated Sep 16, 2024

Server-side request forgery in SysJust Syuan-Gu-Da-Shih 20191223 and earlier allows remote attackers to read server files via forged requests. Public advisories do not identify the request handler or parameter; they state only that forged inquiries reach internal network resources or server system files. No authentication or user interaction is required, and access is bounded by resources available to the server process.

CVSS severity9.8
Critical
EPSS probability1.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in SysJust Syuan-Gu-Da-Shih 20191223 and earlier allows remote attackers to read server files via forged requests. Public advisories do not identify the request handler or parameter; they state only that forged inquiries reach internal network resources or server system files. No authentication or user interaction is required, and access is bounded by resources available to the server process.

The record

CVE
CVE-2020-3938
Published
Feb 4, 2020
Updated
Sep 16, 2024
Vendor
SysJust
Product
Syuan-Gu-Da-Shih
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 4, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=20191223

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SysJust · Syuan-Gu-Da-Shihversion=0 <=20191223

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
9.8TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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