CVE-2025-14528VulnerabilityPublished 11 Dec 2025

CVE-2025-14528: D-Link DIR-803 · Information Disclosure

Affects D-Link DIR-803Source CVE Database V5

Not known to be exploited · public detection template (Nuclei) · CVSS 6.9 Medium · end of life, no fix coming : replace or isolate D-Link DIR-803; no fix will be released.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score

6.9Medium

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

EPSS: 3.9% chance of exploitation in 30 days – higher than 90% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: None coming – the product is end of life

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

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: None
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

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: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
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.
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 11 Dec 2025
Detectable: evidence found.
nuclei template: D-Link DIR-803 - Authentication Bypass
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

No fix will be released: D-Link DIR-803 is end of life. Replace it, or isolate it from untrusted networks until you can.

Affected software

Product	Affected	Fixed in
D-Link DIR-803	Affected =1.04	Fixed in–

AI-suggested

Given the absence of official patches due to end-of-life status, the most effective mitigation is to replace all affected D-Link DIR-803 devices with supported and updated hardware from reputable vendors. If immediate replacement is not feasible, organizations should isolate these devices from untrusted networks by implementing strict firewall rules that restrict inbound access to the router’s management interfaces, especially blocking access to /getcfg.php. Network segmentation should be employed to limit the exposure of vulnerable devices. Monitoring network traffic for unusual requests targeting /getcfg.php or suspicious manipulation of the AUTHORIZED_GROUP parameter can help detect exploitation attempts. Additionally, disabling remote management features on these routers can reduce the attack surface. Organizations should also review and update network security policies to ensure unsupported devices are identified and phased out promptly. User education about the risks of outdated network equipment can support these efforts. Finally, consider deploying intrusion detection or prevention systems capable of recognizing exploit attempts against this vulnerability.

Description

A vulnerability was detected in D-Link DIR-803 up to 1.04. Impacted is an unknown function of the file /getcfg.php of the component Configuration Handler. The manipulation of the argument AUTHORIZED_GROUP results in information disclosure. The attack may be performed from remote. The exploit is now public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Impact

For European organizations, the primary impact of CVE-2025-14528 is the potential leakage of sensitive router configuration information, which could include credentials, network topology, or other security-related settings. Such information disclosure can enable attackers to plan more targeted attacks, including unauthorized network access or lateral movement within corporate or home networks. Although the vulnerability does not directly allow code execution or denial of service, the indirect consequences of leaked configuration data can be significant, especially in environments where these routers serve as the primary gateway or are part of critical infrastructure. The fact that the affected devices are no longer supported means organizations cannot rely on vendor patches, increasing the risk exposure. European SMEs and home users who commonly deploy consumer-grade D-Link routers may be particularly vulnerable. Additionally, organizations with remote or hybrid work setups using these routers for VPN or network access could face elevated risks. The public availability of exploit code further raises the urgency for mitigation to prevent opportunistic attacks.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 11 Dec 2025, 20:09 UTC

Public exploits and detectiona Nuclei detection template

Technical details

References

Community reviews

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