VulnerabilityPublished 15 Sep 2025

CVE-2025-10441: D-Link DI-8100G · OS Command Injection

Affects D-Link DI-8100GSource CVE Database V5

Public exploit available · 13% EPSS · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 4.0 base score

5.3Medium

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

EPSS: 13.7% chance of exploitation in 30 days – higher than 96% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Base metrics

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

Threat metrics

Exploit Maturity: POC

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: 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 to the Vulnerable System.
Vulnerable system 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 Vulnerable System 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 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.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 15 Sep 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
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), CVSS vector, 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
D-Link DI-8100G	Affected =17.12.20 =19.12.10	Fixed in–

AI-suggested

Immediate network segmentation: Isolate affected D-Link routers from critical network segments to limit potential lateral movement if compromised.
Access control: Restrict remote management interfaces of the routers to trusted IP addresses only, preferably via VPN or secure management channels.
Disable unnecessary services: If possible, disable the version upgrade web interface or any remote management features until patches are available.
Monitor network traffic: Implement intrusion detection systems (IDS) and anomaly detection to identify suspicious command injection attempts targeting the affected devices.
Firmware updates: Regularly check with D-Link for official patches or firmware updates addressing this vulnerability and apply them promptly once released.
Device replacement: For high-risk environments, consider replacing affected routers with models that have no known vulnerabilities or have received timely security updates.
Incident response readiness: Prepare to respond to potential exploitation attempts by maintaining logs and having procedures to isolate and remediate compromised devices.
Vendor communication: Engage with D-Link support channels to obtain guidance and timelines for patch releases. These steps go beyond generic advice by focusing on network architecture changes, proactive monitoring, and vendor engagement specific to this vulnerability.

Description

A vulnerability was found in D-Link DI-8100G, DI-8200G and DI-8003G 17.12.20A1/19.12.10A1. Affected by this issue is the function sub_433F7C of the file version_upgrade.asp of the component jhttpd. The manipulation of the argument path results in os command injection. The attack may be launched remotely. The exploit has been made public and could be used.

Impact

For European organizations, this vulnerability poses a significant risk, especially for those relying on the affected D-Link router models in their network infrastructure. Successful exploitation could allow attackers to execute arbitrary commands on the router, potentially leading to network compromise, interception or manipulation of traffic, and pivoting into internal systems. This could result in data breaches, disruption of business operations, and loss of network availability. Given that these routers are often deployed at branch offices or smaller sites, attackers could leverage this vulnerability to establish persistent footholds or launch further attacks against corporate networks. The medium CVSS score reflects moderate impact, but the ease of remote exploitation without authentication elevates the threat level. European organizations with limited IT security resources or outdated network equipment are particularly vulnerable. Additionally, the lack of patches means that mitigation depends on network-level controls and device replacement or firmware upgrades once available. The vulnerability also raises concerns for critical infrastructure sectors that may use these devices, such as healthcare, manufacturing, and public administration, where network reliability and security are paramount.

References

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 15 Sep 2025, 10:36 UTC

Technical details

References

Community reviews

Related threats