VulnerabilityPublished 28 Mar 2024Updated 28 Oct 2024

CVE-2024-30604: IoT-vulnerable · Tenda FH1203 v2.0.1.6 has a stack overflow

Affects IoT-vulnerableSource CVE Database V5

Not known to be exploited · CVSS 7.5 High.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score

7.5High

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

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

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, 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: 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: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within 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 28 Mar 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

Affected software

Product	Affected	Fixed in
GitHubabcdefg-png/IoT-vulnerable`pkg:github/abcdefg-png/IoT-vulnerable`Other threats	Affected =2.0.1.6	Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Monitor official Tenda communications and security advisories for firmware updates addressing CVE-2024-30604 and apply patches immediately upon release.
In the absence of patches, restrict remote access to the router’s management interfaces by implementing network segmentation and firewall rules to limit exposure to untrusted networks.
Disable any unnecessary services or features related to DHCP client list processing if configurable, to reduce the attack surface.
Employ network intrusion detection systems (NIDS) to monitor for unusual traffic patterns or attempts to exploit the 'list1' parameter remotely.
Consider replacing affected Tenda FH1203 routers with alternative devices from vendors with more robust security update practices if patching is delayed.
Educate network administrators about the vulnerability and encourage regular device inventory and firmware version audits to identify and prioritize vulnerable devices.
Implement network-level redundancy and failover mechanisms to mitigate the impact of potential router outages caused by exploitation.
Limit exposure of the router’s management interfaces to the internet or untrusted networks by using VPNs or secure management channels.

Description

Tenda FH1203 v2.0.1.6 has a stack overflow vulnerability in the list1 parameter of the fromDhcpListClient function.

Impact

The primary impact of CVE-2024-30604 is a denial of service condition caused by a stack overflow in the Tenda FH1203 router. This can lead to device crashes, network outages, and loss of connectivity for users relying on the affected routers. Organizations using these routers in critical network segments, such as small businesses or branch offices, may experience operational disruptions. The vulnerability does not compromise confidentiality or integrity, so data theft or manipulation is unlikely. However, the loss of availability can affect business continuity, remote work capabilities, and access to cloud or internal resources. The ease of remote exploitation without authentication increases the risk of automated attacks or widespread scanning by threat actors. Although no exploits are currently known in the wild, the vulnerability could be targeted in the future, especially if proof-of-concept code becomes available. The lack of patches means affected devices remain vulnerable until firmware updates are released and applied. This vulnerability could also be leveraged as part of larger attack chains, for example, to disrupt network infrastructure during broader cyber campaigns.

CWE-125Out-of-bounds Read (opens in a new tab)
Base weaknessCWE Top 25 (2025): #8
The product reads data past the end, or before the beginning, of the intended buffer.
Implementation · Input Validation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
Architecture and Design · Language Selection
Use a language that provides appropriate memory abstractions.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
Attack patterns
Overread Buffers (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/FH/FH1203/fromDhcpListClient_list1.md (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 26 Feb 2026, 14:12 UTC

WeaknessesCWE-125

Technical details

References

Community reviews

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