VulnerabilityPublished 29 May 2025Updated 12 Jun 2025

CVE-2025-32752: Dell ThinOS · Cleartext Storage of Sensitive Information

Affects Dell ThinOSSource CVE Database V5

Not known to be exploited · CVSS 5.7 Medium.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 3.1 base score

5.7Medium

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

EPSS: 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

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

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

Attack Vector: Physical: The attack requires the attacker to physically touch or manipulate the vulnerable component. Physical interaction may be brief or persistent.
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
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: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
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 29 May 2025
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 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
Dell ThinOS	Affected <=2502	Fixed in–

AI-suggested

To mitigate this vulnerability, European organizations should implement the following specific measures: 1) Physically secure all Dell ThinOS thin client devices to prevent unauthorized access. This includes controlled access to offices, locked cabinets, or secure docking stations. 2) Restrict administrative privileges on ThinOS devices to trusted personnel only, minimizing the risk of a high privileged attacker gaining physical access. 3) Regularly audit and monitor physical access logs and device usage to detect any suspicious activity. 4) Deploy endpoint encryption solutions or secure storage mechanisms where possible to protect sensitive data at rest on ThinOS devices. 5) Coordinate with Dell to obtain and apply any available patches or firmware updates addressing this vulnerability as soon as they are released. 6) Consider implementing multi-factor authentication (MFA) for access to VDI environments to reduce the impact of credential disclosure. 7) Educate users and administrators about the risks of physical device compromise and enforce strict device handling policies. 8) Where feasible, replace or upgrade ThinOS devices to versions beyond 2502 or alternative secure thin client solutions that do not store sensitive information in cleartext.

Description

Dell ThinOS 2502 and prior contain a Cleartext Storage of Sensitive Information vulnerability. A high privileged attacker with physical access could potentially exploit this vulnerability, leading to Information Disclosure.

Impact

For European organizations, the impact of this vulnerability can be significant, especially in sectors relying heavily on VDI solutions such as finance, healthcare, government, and large enterprises. The exposure of sensitive information through cleartext storage could lead to unauthorized access to corporate networks, data breaches, and lateral movement within the IT environment. Given that the vulnerability requires physical access and high privileges, the risk is elevated in environments where endpoint devices are less physically secure or shared among multiple users. The confidentiality breach could expose user credentials or session tokens, undermining the security of remote access systems. This could lead to compliance violations under regulations such as GDPR, which mandates the protection of personal data. Additionally, the potential for information disclosure could facilitate targeted attacks or espionage, especially in critical infrastructure or governmental organizations within Europe.

CWE-312Cleartext Storage of Sensitive Information (opens in a new tab)
Base weaknessOWASP Top 10 A06:2025: Insecure Design (opens in a new tab)
The product stores sensitive information in cleartext within a resource that might be accessible to another control sphere.
Implementation · System Configuration · Operation
When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to encrypt the data at rest.
Implementation · System Configuration · Operation
In some systems/environments such as cloud, the use of "double encryption" (at both the software and hardware layer) might be required, and the developer might be solely responsible for both layers, instead of shared responsibility with the administrator of the broader system/environment.
OWASP Cheat Sheets
Secure Design Principles (opens in a new tab)
OWASP ASVS 4.0.3
V8.1.6 (opens in a new tab)
V8.2.3 (opens in a new tab)
V8.2.2 (opens in a new tab)
Attack patterns
Retrieve Embedded Sensitive Data (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

dell.com/support/kbdoc/en-us/000325632/dsa-2025-225 (opens in a new tab)

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 7 Jul 2025, 22:26 UTC

WeaknessesCWE-312

Technical details

References

Community reviews

Related threats