CVE-2021-43361Network attack vector

Unauthenticated database disclosure via unsanitized web input

Published Sep 29, 2022 · Updated May 20, 2025

SQL injection in MedData HBYS before 1.1 allows remote attackers to read critical database information through unauthenticated web access. Public records identify improper sanitization of web input before use in a database query, but do not disclose the affected endpoint, parameter, or code locus. Any remote party that can reach the web interface can extract sensitive database content without credentials; no broader consequence is publicly demonstrated.

CVSS severity9.9
Critical
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in MedData HBYS before 1.1 allows remote attackers to read critical database information through unauthenticated web access. Public records identify improper sanitization of web input before use in a database query, but do not disclose the affected endpoint, parameter, or code locus. Any remote party that can reach the web interface can extract sensitive database content without credentials; no broader consequence is publicly demonstrated.

The record

CVE
CVE-2021-43361
Published
Sep 29, 2022
Updated
May 20, 2025
Vendor
MedData Bilişim İletişim Sistemleri
Product
MedData HBYS
Classifications
CWE-89, CAPEC-66, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 29, 2022CVE publishedPublication date reported by the CVE source.
  2. May 20, 2025Record 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=unspecified <1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MedData Bilişim İletişim Sistemleri · MedData HBYSversion=unspecified <1.1

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.9Computer Emergency Response Team of the Republic of TurkeyCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L
9.8NIST NVDCVSS: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-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CAPEC-66SQL Injection
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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