Cisco Small Business RV Series Routers Management Interface Remote Command Execution and Denial of Service Vulnerabilities
Description
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly. These vulnerabilities are due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit these vulnerabilities by sending crafted HTTP requests 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 denial of service (DoS) condition. To exploit these vulnerabilities, an attacker would need to have valid administrator credentials on the affected device.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Multiple buffer overflow vulnerabilities in Cisco Small Business RV series routers' web management interface allow authenticated admin to execute code or cause DoS.
Vulnerability
These vulnerabilities [1] affect the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 routers. The issue arises from improper validation of user-supplied input, leading to buffer overflows. An authenticated attacker with administrator credentials can send crafted HTTP requests to exploit these flaws.
Exploitation
An attacker must have valid administrator credentials to the device's web management interface. They can then send specially crafted HTTP requests that trigger a buffer overflow, potentially executing arbitrary code or causing a denial of service. No user interaction is required beyond the attacker's own actions.
Impact
Successful exploitation allows the attacker to execute arbitrary code with root privileges on the underlying operating system, or cause the device to reload, resulting in a denial of service condition. This gives full control over the router.
Mitigation
Cisco has released free software updates to address these vulnerabilities [1]. Customers should upgrade to the fixed firmware version as indicated in the Cisco Security Advisory. No workarounds are mentioned. The vulnerabilities are not listed on the CISA Known Exploited Vulnerabilities (KEV) catalog as per the provided information.
AI Insight generated on May 26, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- Range: n/a
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-overflow-ghZP68yjmitrevendor-advisoryx_refsource_CISCO
News mentions
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