CVE-2024-0927VulnerabilityPublished 26 Jan 2024Updated 29 May 2025

CVE-2024-0927: Tenda AC10U · Stack-based Buffer Overflow

Affects Tenda AC10USource CVE Database V5

Not known to be exploited · CVSS 4.7 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

4.7Medium

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

EPSS: 0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

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

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: High: The attacker is authorized with (i.e., requires) privileges that provide significant (e.g., administrative) control over the vulnerable component that could affect component-wide settings and files.
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: 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 impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 26 Jan 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 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

AI-suggested

2) Immediately isolate these devices from untrusted networks or restrict management interfaces to trusted internal networks only, using firewall rules or VLAN segmentation. 3) Disable remote management features if enabled, especially those accessible from the internet. 4) Monitor network traffic for unusual activity targeting the fromAddressNat function or related NAT configuration interfaces, using IDS/IPS signatures or anomaly detection tools. 5) Consider replacing affected Tenda AC10U routers with alternative devices from vendors with active security support and patching policies. 6) Implement strict access controls requiring multi-factor authentication for administrative access to routers to mitigate the high privilege requirement for exploitation. 7) Regularly review and update network device firmware and configurations to maintain security hygiene. 8) Stay informed on any future vendor updates or community-developed patches addressing this vulnerability.

Description

A vulnerability was found in Tenda AC10U 15.03.06.49_multi_TDE01. It has been classified as critical. Affected is the function fromAddressNat. The manipulation of the argument entrys/mitInterface/page leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-252132. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Impact

For European organizations, the impact of CVE-2024-0927 can be significant, especially for those relying on Tenda AC10U routers in their network infrastructure. Although the CVSS score is medium, the potential for remote exploitation of a stack-based buffer overflow can lead to unauthorized code execution, service disruption, or compromise of network traffic confidentiality and integrity. This could result in network outages, interception or manipulation of sensitive data, and potential lateral movement within corporate networks. The lack of vendor response and absence of patches exacerbate the risk, as organizations must rely on mitigations or device replacement. Given that routers are critical network edge devices, their compromise can undermine the security posture of entire organizational networks. This is particularly concerning for sectors with high security requirements such as finance, healthcare, and government institutions in Europe. Additionally, the exposure of home or small office routers can serve as entry points for attackers targeting remote workers or branch offices, which are common in European distributed enterprise environments.

CWE-121Stack-based Buffer Overflow (opens in a new tab)
Variant weaknessLikelihood of exploit: HighCWE Top 25 (2025): #14
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
Operation · Build and Compilation · Environment Hardening
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index…
Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Implementation
Implement and perform bounds checking on input.
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)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 7 Jul 2025, 23:41 UTC

WeaknessesCWE-121

Technical details

References

Community reviews

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