CVE-2026-22080 is a high-severity vulnerability that exists in Tenda wireless routers, specifically the 300Mbps Wireless Router F3 and N300 Easy Setup Router. This vulnerability allows the transmission of credentials encoded using reversible Base64 encoding through the web-based administrative interface. An attacker on the same network could exploit this vulnerability by intercepting network traffic and capturing the Base64-encoded credentials.
Successful exploitation of this vulnerability could allow the attacker to obtain sensitive information and gain unauthorized access to the targeted device. The CVSS score for this vulnerability is 8.7, indicating a high severity level, which highlights the importance of addressing it immediately.
Organizations should prioritize patching immediately to mitigate the risks associated with this vulnerability. The vulnerable routers are widely used, and the potential for misuse is significant, given that attackers only need to be on the same network to execute the exploitation.
As of now, the vulnerability status is deferred, meaning that while it has been identified, there may not be an immediate patch available. Organizations should remain vigilant and monitor for updates regarding mitigation strategies.
Vulnerability Details
This vulnerability exists in Tenda wireless routers (300Mbps Wireless Router F3 and N300 Easy Setup Router) due to the transmission of credentials encoded using reversible Base64 encoding through the web-based administrative interface. An attacker on the same network could exploit this vulnerability by intercepting network traffic and capturing the Base64-encoded credentials.
The CVSS score of 8.7 categorizes this vulnerability as high severity, with significant impacts on confidentiality, integrity, and availability. The potential for unauthorized access necessitates a swift response from organizations using affected products.
Technical Analysis
The root cause of CVE-2026-22080 stems from the improper handling of sensitive information via the web-based administrative interface of Tenda routers. This vulnerability is classified under CWE-319, which relates to the exposure of sensitive information through an insecure channel.
The attack vector is adjacent, meaning that an attacker must be on the same network to intercept the credentials. The attack complexity is low, as no special privileges are required, and user interaction is not necessary for the exploitation to occur. The impact on confidentiality, integrity, and availability is rated as high, emphasizing the critical nature of this vulnerability.
Risk & Impact Analysis
Risk to organizations includes unauthorized access to sensitive information, which could lead to further attacks or data breaches. The potential blast radius is considerable, given the widespread use of Tenda routers across various networks. Organizations must understand that the exploitation of this vulnerability can lead to severe consequences, including loss of data and reputation.
With an EPS score of 0.00014, this vulnerability ranks in the lower percentile, indicating a currently low likelihood of exploitation. However, the high CVSS score signifies that organizations should not underestimate the risks associated with it. The urgency for remediation is high, especially for businesses relying on affected router models.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Affected versions include Tenda wireless routers, specifically the 300Mbps Wireless Router F3 and N300 Easy Setup Router. If version information is missing, organizations should assume that all versions prior to any future vendor patch are vulnerable.
Mitigation & Remediation
Organizations must prioritize upgrading their Tenda wireless routers to the latest firmware version as soon as it becomes available. If a patch is not available, implement network segmentation to limit access to sensitive devices. Additional security measures, such as monitoring network traffic for unusual activity, should also be considered.
Consider employing penetration testing to assess the security posture and identify potential vulnerabilities in the network.
Detection Guidance
Organizations should monitor logs for any signs of unauthorized access attempts or unusual network traffic patterns indicative of exploitation attempts. Behavioral anomalies in user access and activities should also be logged and reviewed regularly.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in the growing trend of misconfigured devices that expose sensitive information. Organizations need to adopt a proactive approach to security, ensuring that devices are properly configured and monitored.
Security teams should learn from vulnerabilities like CVE-2026-22080 to prevent similar issues in the future. Implementing best practices for device configuration and regular security assessments can significantly reduce the risk of exploitation.
For further insights, organizations can refer to the following resources:
vulnerability management program and penetration testing methodology resources.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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