CVE-2025-10933VulnerabilityPublished 5 Jan 2026

CVE-2025-10933: silabs.com Z-Wave Protocol Controller · Out-of-bounds Read

Affects silabs.com Z-Wave Protocol ControllerSource CVE Database V5

Not known to be exploited · CVSS 5.3 Medium : upgrade to 1.7.1 when convenient.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score

5.3Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 18% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 1.7.1

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: None
Vulnerable system confidentiality: Low
Vulnerable system integrity: None
Vulnerable system availability: None
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

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

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, 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: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 5 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 silabs.com Z-Wave Protocol Controller to 1.7.1.

Affected software

Product	Affected	Fixed in
silabs.comZ-Wave Protocol Controller	Affected <1.7.1	Fixed in 1.7.1
GitHubZ-Wave Protocol Controller`pkg:github/Z-Wave Protocol Controller`Other threats	Affected <1.7.1	Fixed in 1.7.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

1. Monitor Silicon Labs and vendor advisories closely for official patches or firmware updates addressing CVE-2025-10933 and apply them promptly once available. 2. Implement network segmentation to isolate Z-Wave controllers from critical enterprise networks, limiting exposure to potential attackers. 3. Restrict network access to Z-Wave devices by enforcing strict firewall rules and access control lists, allowing only trusted management systems to communicate with them. 4. Employ intrusion detection and anomaly monitoring solutions tailored to IoT protocols to detect unusual traffic patterns or attempts to exploit memory vulnerabilities. 5. Conduct regular security assessments and penetration testing focused on IoT infrastructure to identify and remediate weaknesses. 6. Where possible, disable unused Z-Wave functionalities or services to reduce the attack surface. 7. Educate operational technology and IoT device administrators about the risks and signs of exploitation related to memory corruption vulnerabilities. 8. Consider deploying network-level encryption and authentication mechanisms for Z-Wave communications if supported by the device ecosystem to reduce interception risks. 9. Maintain an inventory of all Z-Wave devices and their firmware versions to prioritize remediation efforts effectively. 10. Collaborate with IoT device vendors and integrators to ensure secure configuration and timely updates.

Description

An integer underflow vulnerability in the Silicon Labs Z-Wave Protocol Controller can lead to out of bounds memory reads.

Impact

For European organizations, the impact of CVE-2025-10933 is primarily the potential exposure of sensitive information through out-of-bounds memory reads in Z-Wave Protocol Controllers. This could compromise confidentiality of data used in smart home automation, security systems, and energy management solutions. Attackers exploiting this vulnerability could gather intelligence to facilitate further attacks, such as unauthorized access or manipulation of IoT devices. While the vulnerability does not directly affect system integrity or availability, the information disclosure could undermine trust in IoT deployments and lead to privacy violations or regulatory compliance issues under GDPR. Organizations relying heavily on Z-Wave technology for building automation, physical security, or critical infrastructure monitoring may face increased risk. The medium severity score reflects a moderate risk level, but the pervasive use of Z-Wave devices in European smart cities and enterprises elevates the potential impact. Additionally, the lack of patches and known exploits means organizations must proactively manage risk through network controls and monitoring. Failure to address this vulnerability could lead to targeted attacks against IoT ecosystems, especially in sectors like energy, healthcare, and manufacturing where Z-Wave devices are integrated.

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).
CWE-191Integer Underflow (Wrap or Wraparound) (opens in a new tab)
Base weakness
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.
CWE-1284Improper Validation of Specified Quantity in Input (opens in a new tab)
Base weakness
The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.
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.
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)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

community.silabs.com/068Vm00000a4nNI (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 5 Jan 2026, 17:30 UTC

WeaknessesCWE-125, CWE-191, CWE-1284

Technical details

References

Community reviews

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