VulnerabilityPublished 30 Oct 2024Updated 31 Oct 2024

CVE-2024-48272: D-Link DSL6740C · Weak Password Requirements

Source CVE Database V5

Not known to be exploited · CVSS 6.5 Medium.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score

6.5Medium

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

EPSS: 0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Adjacent
Attack Complexity: Low
Privileges Required: None
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: Adjacent: The vulnerable component is bound to the network stack, but the attack is limited at the protocol level to a logically adjacent topology. This can mean an attack must be launched from the same shared physical (e.g., Bluetooth or IEEE 802.11) or logical (e.g., local IP subnet) network, or from within a secure or otherwise limited administrative domain (e.g., MPLS, secure VPN to an administrative network zone).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
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 30 Oct 2024
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 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

AI-suggested

To mitigate CVE-2024-48272, organizations and users should immediately change the default Wi-Fi password on affected D-Link DSL6740C devices to a strong, unique passphrase that combines uppercase and lowercase letters, numbers, and special characters. Network administrators should audit all deployed devices to identify those running the vulnerable firmware version and verify password configurations. Implementing WPA3 or at least WPA2 encryption protocols can enhance wireless security. Additionally, disabling WPS (Wi-Fi Protected Setup) can reduce attack vectors. Monitoring wireless network logs for unusual connection attempts or brute force activity is recommended. If possible, segment the network to isolate critical systems from guest or less secure Wi-Fi networks. Users should also check for firmware updates from D-Link that may address this vulnerability and apply them promptly once available. Employing network access control (NAC) solutions can help restrict unauthorized devices from connecting even if the password is compromised.

Description

D-Link DSL6740C v6.TR069.20211230 was discovered to use an insecure default Wifi password, possibly allowing attackers to connect to the device via a bruteforce attack.

Impact

Organizations using the affected D-Link DSL6740C routers are at risk of unauthorized network access due to the insecure default Wi-Fi password. This can lead to confidentiality breaches, including interception of sensitive communications and data leakage. Attackers gaining Wi-Fi access may also perform lateral movement within the internal network, potentially compromising additional systems. Although the vulnerability does not directly impact device integrity or availability, the unauthorized access could facilitate further attacks such as malware deployment or network reconnaissance. The medium severity score reflects the moderate risk posed by this vulnerability, primarily due to the need for attackers to be within wireless range and the absence of known active exploits. However, given the widespread use of D-Link routers in home and small business environments, the potential impact is significant, especially where network segmentation and monitoring are weak or absent.

CWE-521Weak Password Requirements (opens in a new tab)
Base weaknessOWASP Top 10 A07:2025: Authentication Failures (opens in a new tab)
The product does not require that users should have strong passwords.
Architecture and Design
A product's design should require adherance to an appropriate password policy. Specific password requirements depend strongly on contextual factors, but it is recommended to contain the following attributes: Enforcement of a minimum and maximum length; Restrictions against password reuse; Restrictions against using…
Architecture and Design
Consider a second authentication factor beyond the password, which prevents the password from being a single point of failure. See CWE-308 for further information.
Implementation
Consider implementing a password complexity meter to inform users when a chosen password meets the required attributes.
OWASP Cheat Sheets
OWASP Authentication (opens in a new tab)
OWASP ASVS 4.0.3
V2.1.2 (opens in a new tab)
V2.1.4 (opens in a new tab)
V2.1.3 (opens in a new tab)
Attack patterns
Dictionary-based Password Attack (opens in a new tab)
Password Brute Forcing (opens in a new tab)
Kerberoasting (opens in a new tab)
Rainbow Table Password Cracking (opens in a new tab)
Remote Services with Stolen Credentials (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 26 Feb 2026, 08:58 UTC

WeaknessesCWE-521

Technical details

References

Community reviews

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