CVE-2024-31808VulnerabilityPublished 8 Apr 2024Updated 2 Aug 2024

CVE-2024-31808: n/a

Source CVE Database V5

Not known to be exploited · CVSS 8.8 High.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score

8.8High

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

EPSS: 0.9% chance of exploitation in 30 days – higher than 60% 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:H/A:H

Attack Vector: Adjacent
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

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: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 8 Apr 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 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

1. Immediately restrict access to the router's management interfaces by limiting them to trusted internal networks and disabling remote management where possible. 2. Implement network segmentation to isolate vulnerable devices from critical infrastructure and sensitive data. 3. Monitor network traffic for unusual activity that may indicate exploitation attempts targeting the webWlanIdx parameter or related functions. 4. Employ intrusion detection/prevention systems (IDS/IPS) with signatures or heuristics capable of detecting anomalous requests to the router's web interface. 5. Regularly check for firmware updates or security advisories from TOTOLINK and apply patches promptly once available. 6. Consider replacing affected devices with models from vendors with more robust security track records if patching is delayed. 7. Educate network administrators on the risks and signs of exploitation to enable rapid response. 8. Use strong network access controls and authentication mechanisms on all network devices to reduce attack surface.

Description

TOTOLINK EX200 V4.0.3c.7646_B20201211 was discovered to contain a remote code execution (RCE) vulnerability via the webWlanIdx parameter in the setWebWlanIdx function.

Impact

The exploitation of CVE-2024-31808 can have severe consequences for organizations worldwide. Successful attacks could lead to complete compromise of affected TOTOLINK EX200 routers, enabling attackers to intercept sensitive data, disrupt network availability, or use the device as a foothold for further attacks within the internal network. This could result in data breaches, service outages, and loss of trust. Since routers are critical network infrastructure components, their compromise can undermine the security of connected devices and systems. The vulnerability's ease of exploitation without authentication or user interaction increases the risk of widespread attacks, especially in environments where these routers are deployed in large numbers or exposed to untrusted networks. The lack of available patches further exacerbates the threat, leaving organizations vulnerable until mitigations or firmware updates are provided.

CWE-233Improper Handling of Parameters (opens in a new tab)
Base weakness
The product does not properly handle when the expected number of parameters, fields, or arguments is not provided in input, or if those parameters are undefined.
OWASP Cheat Sheets
Abuse Case (opens in a new tab)
Deserialization (opens in a new tab)
OWASP ASVS 4.0.3
V8.1.3 (opens in a new tab)
V1.5.1 (opens in a new tab)
Attack patterns
Manipulating Opaque Client-based Data Tokens (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

github.com/4hsien/CVE-vulns/blob/main/TOTOLINK/EX200/CI_3_setWebWlanIdx/CI.md (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 26 Feb 2026, 12:11 UTC

WeaknessesCWE-233

Technical details

References

Community reviews

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