VulnerabilityPublished 21 Jan 2024Updated 30 May 2025

CVE-2024-0770: European Chemicals Agency IUCLID · Incorrect Default Permissions

Affects European Chemicals Agency IUCLIDSource CVE Database V5

Not known to be exploited · CVSS 4.4 Medium.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score

4.4Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Attack Vector: Local
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: Low
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Local: The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or remotely (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., tricking a legitimate user into opening a malicious document).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 21 Jan 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
European Chemicals Agency IUCLID	Affected =7.10.3	Fixed in–

AI-suggested

To mitigate this vulnerability, European organizations should: 1) Restrict local access to systems running IUCLID to trusted and authorized personnel only, enforcing strict user account controls and monitoring. 2) Review and manually audit the file and directory permissions of the IUCLID installation, correcting any overly permissive settings to adhere to the principle of least privilege. 3) Implement application whitelisting and integrity monitoring tools to detect unauthorized changes to IUCLID executables and configuration files. 4) Employ endpoint protection solutions that can detect and prevent privilege escalation attempts or unauthorized local modifications. 5) Maintain strict physical security controls on machines running IUCLID to prevent unauthorized local access. 6) Engage with the European Chemicals Agency or IUCLID maintainers for updates or patches, and apply them promptly once available. 7) Consider isolating IUCLID installations in controlled environments or virtual machines to limit exposure. These steps go beyond generic advice by focusing on local access control, permission auditing, and integrity monitoring specific to the IUCLID environment.

Description

A vulnerability, which was classified as critical, was found in European Chemicals Agency IUCLID 7.10.3 on Windows. Affected is an unknown function of the file iuclid6.exe of the component Desktop Installer. The manipulation leads to incorrect default permissions. The attack needs to be approached locally. VDB-251670 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Impact

For European organizations, particularly those involved in chemical regulation, manufacturing, or compliance reporting, this vulnerability poses a risk to the integrity and availability of critical chemical data managed through IUCLID. Unauthorized local users with limited privileges could exploit the incorrect default permissions to modify installation files or configurations, potentially leading to corrupted data, altered chemical substance information, or disruption of regulatory submissions. This could result in compliance failures, regulatory penalties, or safety risks if inaccurate chemical data is propagated. Since IUCLID is widely used across European chemical agencies and companies to comply with EU regulations such as REACH, the impact could affect operational continuity and trustworthiness of chemical data management processes. However, the requirement for local access limits the threat to insiders or attackers who have already compromised a local account, reducing the risk of remote exploitation.

CWE-276Incorrect Default Permissions (opens in a new tab)
Base weaknessLikelihood of exploit: MediumOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
During installation, installed file permissions are set to allow anyone to modify those files.
Architecture and Design · Operation
The architecture needs to access and modification attributes for files to only those users who actually require those actions.
Architecture and Design · Separation of Privilege
Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
OWASP Cheat Sheets
Access Control (opens in a new tab)
Authorization Testing Automation (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V8.3.8 (opens in a new tab)
V13.4.2 (opens in a new tab)
Attack patterns
Accessing Functionality Not Properly Constrained by ACLs (opens in a new tab)
Directory Indexing (opens in a new tab)
Web Server Logs Tampering (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 8 Jul 2025, 16:43 UTC

WeaknessesCWE-276

Technical details

References

Community reviews

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