A security flaw has been discovered in Tenda F456 1.0.0.5. This vulnerability allows the manipulation of the argument page in the function frmL7ProtForm of the file /goform/L7Prot, resulting in a buffer overflow. The CVSS score for this vulnerability is 7.4, categorizing it as high severity. The risk to organizations includes potential remote exploitation, making it critical for users to address this vulnerability promptly.
The exploit has been released to the public, which indicates an increased urgency for defenders to implement patching measures. Organizations should prioritize patching immediately to mitigate the risk of attacks leveraging this vulnerability. Given the potential for significant impact, including high confidentiality, integrity, and availability impacts, this vulnerability poses a serious threat.
As of now, the vulnerability status is recorded as 'Received,' indicating that it is actively monitored. There are indications that the exploitability is high, which necessitates immediate action from affected organizations to safeguard their systems.
Organizations should take this threat seriously and implement necessary updates or mitigations as soon as patches become available to protect their environments from potential attacks.
Vulnerability Details
The vulnerability in Tenda F456 1.0.0.5 is characterized by a buffer overflow, which can lead to critical system failures or unauthorized access if exploited. The CVSS score, assessed at 7.4, indicates a high severity level, reflecting the potential impacts on confidentiality, integrity, and availability.
The impacted component is the httpd of the Tenda F456 device. The vulnerability was published on April 26, 2026, following its discovery. It is classified under CWE-119 and CWE-120, denoting improper control of a resource through its lifetime and buffer errors, respectively.
Technical Analysis
The root cause of this vulnerability lies in a failure to properly validate input parameters, specifically within the function frmL7ProtForm. The attack vector is network-based, allowing remote attackers to exploit this vulnerability without requiring physical access to the device.
The attack complexity is low, and the privileges required to exploit this vulnerability are also low. There is no user interaction needed for an attacker to successfully execute an exploit. This vulnerability's potential impacts are significant, with high confidentiality, integrity, and availability impacts, indicating that an attacker could potentially gain unauthorized access to sensitive information or disrupt services.
Risk & Impact Analysis
Real-world deployment risk from this vulnerability is substantial. Organizations utilizing Tenda F456 should be aware that the release of the exploit to the public increases the likelihood of attacks. The urgency assessment indicates that organizations should prioritize patching immediately due to the high CVSS score and the potential for significant impact if exploited.
The blast radius for this vulnerability could extend broadly, affecting not only the integrity of the device but also potentially compromising the networks to which it connects. Organizations that fail to address this vulnerability in a timely manner risk severe operational disruptions and data breaches.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version of the Tenda device is 1.0.0.5. If version information is missing, organizations should treat this as affecting all versions prior to the vendor patch.
Mitigation & Remediation
Organizations should monitor for any patches released by Tenda and apply them as soon as they are available. In the interim, it is recommended to implement network controls to limit access to the vulnerable device and consider utilizing intrusion detection systems to monitor for suspicious activity.
Configuration hardening should be performed to reduce the risk of exploitation. Organizations may also consider conducting a thorough security assessment and penetration testing to identify potential vulnerabilities in their systems. For more comprehensive strategies, organizations can refer to our penetration testing services.
Detection Guidance
Organizations should monitor logs for any indicators of exploitation attempts. Behavioral anomalies indicating unauthorized access or unusual system behavior should also be investigated. It is essential to set up network signatures that can detect anomalous traffic patterns associated with exploitation attempts.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2026-7053 highlights the ongoing challenges faced by manufacturers in securing their devices against remote exploitation. This vulnerability serves as a reminder for security teams to conduct regular security assessments and enhance their defensive measures.
Patterns of vulnerabilities like this one indicate that organizations must prioritize security in their product development lifecycle. Security teams can benefit from developing a robust penetration testing methodology to identify and mitigate risks early.
The strategic takeaway is for security teams to maintain vigilance and ensure that patch management processes are in place. For additional insights on threat trends, organizations can refer to our vulnerability management program to increase their security posture.
Lastly, collaboration with security experts can help organizations better understand their attack surface and improve defensive strategies.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)