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A vulnerability in the Universal Plug-and-Play (UPnP) service of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of incoming UPnP traffic. An attacker could exploit this vulnerability by sending a crafted UPnP request to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a DoS condition. Cisco has not released software updates that address this vulnerability.
Publish Date : 2021-08-18 Last Update Date : 2022-10-27
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CVSS Scores & Vulnerability Types
| CVSS Score |
10.0 |
| Confidentiality Impact |
Complete
(There is total information disclosure, resulting in all system files being revealed.) |
| Integrity Impact |
Complete
(There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.) |
| Availability Impact |
Complete
(There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.) |
| Access Complexity |
Low
(Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. ) |
| Authentication |
Not required
(Authentication is not required to exploit the vulnerability.) |
| Gained Access |
None |
| Vulnerability Type(s) |
Denial Of ServiceExecute Code |
| CWE ID |
787 |
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Products Affected By CVE-2021-34730
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Number Of Affected Versions By Product
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References For CVE-2021-34730
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Vulnerability Conditions
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Vulnerability is valid if product versions listed below are used
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Vulnerability is valid if product versions listed below are used
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Vulnerability is valid if product versions listed below are used
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Vulnerability is valid if product versions listed below are used
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Vulnerability is valid if product versions listed below are used
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Metasploit Modules Related To CVE-2021-34730
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