CVE-2026-12357Network attack vector

Administrator-to-root execution via CRLF-injected service configuration

Published Jul 29, 2026 · Updated Jul 29, 2026

CRLF injection in Heimdall Data Database Proxy 25.03.01.21 allows remote authenticated users to execute arbitrary code as root. The generateFileContent function inserts administrator-supplied hdUser and hdPassword values into an operating-system service configuration without neutralizing CRLF sequences. Administrator access and configuration of those values are required, after which injected service directives execute with root privileges.

CVSS severity7.2
High
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CRLF injection in Heimdall Data Database Proxy 25.03.01.21 allows remote authenticated users to execute arbitrary code as root. The generateFileContent function inserts administrator-supplied hdUser and hdPassword values into an operating-system service configuration without neutralizing CRLF sequences. Administrator access and configuration of those values are required, after which injected service directives execute with root privileges.

The record

CVE
CVE-2026-12357
Published
Jul 29, 2026
Updated
Jul 29, 2026
Vendor
Heimdall Data
Product
Heimdall Database Proxy
Classifications
CWE-93, T1543
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 29, 2026Record 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=25.03.01.21

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Heimdall Data · Heimdall Database Proxyversion=25.03.01.21

Published CVSS scores

7.2TrendAI Zero Day InitiativeCVSS:3.0/AV:N/AC:L/PR:H/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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-93Improper Neutralization of CRLF Sequences ('CRLF Injection')
T1543Create or Modify System Process

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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