Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities
Description
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV320 and RV325 Series Routers and Cisco Small Business RV016, RV042, and RV082 Routers could allow an authenticated, remote attacker with administrative privileges to execute arbitrary code on an affected device. The vulnerabilities are due to insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface. An attacker with administrative privileges that are sufficient to log in to the web-based management interface could exploit each vulnerability by sending crafted requests that contain overly large values to an affected device, causing a stack overflow. A successful exploit could allow the attacker to cause the device to crash or allow the attacker to execute arbitrary code with root privileges on the underlying operating system.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Multiple stack overflow vulnerabilities in Cisco RV series routers allow authenticated admin to execute arbitrary code with root privileges via crafted requests.
Vulnerability
Multiple stack overflow vulnerabilities exist in the web-based management interface of Cisco Small Business RV320 and RV325 Series Routers and Cisco Small Business RV016, RV042, and RV082 Routers. The vulnerabilities are due to insufficient boundary restrictions on user-supplied input to scripts in the interface. Affected versions are those prior to the fixed releases mentioned in Cisco's advisory [1].
Exploitation
An authenticated remote attacker with administrative privileges must log in to the web-based management interface. The attacker then sends crafted requests containing overly large values to the device, triggering a stack overflow. No user interaction beyond the initial authentication is required.
Impact
Successful exploitation allows the attacker to cause a device crash or execute arbitrary code with root privileges on the underlying operating system. This results in complete compromise of confidentiality, integrity, and availability of the device.
Mitigation
Cisco has released free software updates to address these vulnerabilities. Administrators should upgrade to the fixed versions as specified in the Cisco Security Advisory [1]. No workarounds are available; the only mitigation is to apply the patch.
AI Insight generated on May 25, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
3- 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-routers-stack-vUxHmnNzmitrevendor-advisoryx_refsource_CISCO
News mentions
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