CVE-2025-7565VulnerabilityPublished 14 Jul 2025

CVE-2025-7565: LB-LINK BL-AC3600 · Information Disclosure

Affects LB-LINK BL-AC3600Source CVE Database V5

Not known to be exploited · CVSS 6.9 Medium.

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: 0.7% chance of exploitation in 30 days – higher than 54% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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 14 Jul 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 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

Affected software

Product	Affected	Fixed in
LB-LINK BL-AC3600	Affected =1.0.0 =1.0.1 =1.0.2 =1.0.3 =1.0.4 =1.0.5 =1.0.6 =1.0.7 =1.0.8 =1.0.9 =1.0.10 =1.0.11 =1.0.12 =1.0.13 =1.0.14 =1.0.15 =1.0.16 =1.0.17 =1.0.18 =1.0.19 =1.0.20 =1.0.21 =1.0.22	Fixed in–

AI-suggested

1. Immediate network segmentation: Isolate LB-LINK BL-AC3600 devices from critical network segments to limit exposure. 2. Disable remote management: If remote web management is enabled, disable it or restrict access to trusted IP addresses only. 3. Monitor network traffic: Implement IDS/IPS rules to detect suspicious HTTP requests targeting /cgi-bin/lighttpd.cgi with anomalous 'Password' parameters. 4. Replace vulnerable devices: Where feasible, replace affected routers with models from vendors with active security support and patch management. 5. Apply compensating controls: Use VPNs or secure tunnels for management access to reduce direct exposure. 6. Regularly audit device configurations and logs for signs of compromise. 7. Engage with LB-LINK support channels persistently to seek firmware updates or official patches. 8. Educate IT staff about this vulnerability and ensure incident response plans include scenarios involving router compromise.

Description

A vulnerability, which was classified as critical, was found in LB-LINK BL-AC3600 up to 1.0.22. This affects the function geteasycfg of the file /cgi-bin/lighttpd.cgi of the component Web Management Interface. The manipulation of the argument Password leads to information disclosure. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Impact

For European organizations, the exploitation of CVE-2025-7565 could lead to unauthorized disclosure of sensitive router configuration data, including network credentials or administrative settings. This exposure can facilitate lateral movement within corporate networks, enable attackers to bypass security controls, or launch further attacks such as man-in-the-middle or persistent backdoors. Organizations relying on LB-LINK BL-AC3600 devices for critical network infrastructure may face increased risk of data breaches or network compromise. Given the lack of vendor response and patches, the threat remains persistent. The impact is particularly significant for small and medium enterprises (SMEs) and public sector entities that may use these cost-effective routers without advanced security monitoring. Additionally, the vulnerability could be exploited by cybercriminals or nation-state actors targeting European networks for espionage or disruption, especially if these devices are deployed in sensitive environments.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 14 Jul 2025, 03:46 UTC

Technical details

References

Community reviews

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