CVE-2025-41728VulnerabilityPublished 27 Jan 2026

CVE-2025-41728: Beckhoff.Device.Manager.XAR · Out-of-bounds Read

Affects Beckhoff.Device.Manager.XARSource CVE Database V5

Not known to be exploited · CVSS 5.3 Medium : upgrade to 2.5.3 when convenient.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

5.3Medium

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 2.5.3, 1.7.0.0, 0.0.5

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

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

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

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: High: A successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected. For example, a successful attack may require an attacker to: gather knowledge about the environment in which the vulnerable target/component exists; prepare the target environment to improve exploit reliability; or inject themselves into the logical network path between the target and the resource requested by the victim in order to read and/or modify network communications (e.g., a man in the middle attack).
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: 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: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 27 Jan 2026
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 2026-10-25.

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

Upgrade Beckhoff.Device.Manager.XAR to 2.5.3; MDP software package for TwinCAT/BSD to 1.7.0.0; MDP for Beckhoff RT Linux(R) to 0.0.5.

Affected software

Product	Affected	Fixed in
Beckhoff AutomationBeckhoff.Device.Manager.XAR	Affected <2.5.3	Fixed in 2.5.3
Beckhoff AutomationMDP software package for TwinCAT/BSD	Affected <1.7.0.0	Fixed in 1.7.0.0
Beckhoff AutomationMDP for Beckhoff RT Linux(R)	Affected <0.0.5	Fixed in 0.0.5

AI-suggested

1. 2. Restrict network access to the Device Manager web service to trusted hosts and networks only, using firewalls and network segmentation to limit exposure. 3. Implement strict access controls and authentication mechanisms to minimize the number of users with low-level privileges capable of interacting with the vulnerable service. 4. Employ intrusion detection and prevention systems (IDS/IPS) with signatures or anomaly detection to identify suspicious requests targeting the Device Manager web service. 5. Conduct regular memory and process monitoring on systems running Beckhoff.Device.Manager.XAR to detect unusual memory access patterns or leaks. 6. Consider deploying application-layer gateways or proxies that can sanitize or block malformed requests before reaching the vulnerable service. 7. Document and audit all interactions with the Device Manager web service to facilitate incident response if exploitation is suspected. 8. Engage with Beckhoff Automation support for guidance and potential workarounds until official patches are released.

Description

A low privileged remote attacker may be able to disclose confidential information from the memory of a privileged process by sending specially crafted calls to the Device Manager web service that cause an out-of-bounds read operation under certain circumstances due to ASLR and thereby potentially copy confidential information into a response.

Impact

For European organizations, especially those operating in industrial automation, manufacturing, or critical infrastructure sectors using Beckhoff Automation products, this vulnerability poses a risk of confidential information leakage. Disclosure of sensitive memory contents could include credentials, configuration data, or proprietary information, potentially enabling further attacks or industrial espionage. While the vulnerability does not directly affect system integrity or availability, the confidentiality breach could undermine trust and compliance with data protection regulations such as GDPR. The medium severity and high attack complexity reduce the likelihood of widespread exploitation, but targeted attacks against strategic industrial assets remain a concern. Organizations relying on Beckhoff.Device.Manager.XAR in their operational technology (OT) environments should consider this vulnerability a significant risk to information confidentiality.

CWE-125Out-of-bounds Read (opens in a new tab)
Base weaknessCWE Top 25 (2025): #8
The product reads data past the end, or before the beginning, of the intended buffer.
Implementation · Input Validation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
Architecture and Design · Language Selection
Use a language that provides appropriate memory abstractions.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
Attack patterns
Overread Buffers (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

certvde.com/de/advisories/VDE-2025-092 (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 27 Jan 2026, 12:05 UTC

WeaknessesCWE-125

Technical details

References

Community reviews

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