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 allow authenticated remote attackers to execute arbitrary code or cause denial of service.
Vulnerability
The vulnerabilities reside in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 routers. They are due to improper validation of user-supplied input, leading to buffer overflows. All firmware versions prior to the fixed releases are affected [1].
Exploitation
An attacker must have valid administrator credentials for the affected device. With those credentials, the attacker can send crafted HTTP requests to the web-based management interface. No additional user interaction is required. The exploitation sequence involves authenticating to the device and then sending a malicious HTTP request that triggers the overflow.
Impact
Successful exploitation allows an attacker to execute arbitrary code as the root user on the underlying operating system, resulting in full compromise of the device. Alternatively, the attacker can cause the device to reload, leading to a denial of service (DoS) condition.
Mitigation
Cisco has released free software updates that address these vulnerabilities. Customers should upgrade their devices to the fixed firmware versions specified in the Cisco Security Advisory [1]. No workarounds are available. The vulnerabilities are not listed on the Known Exploited Vulnerabilities (KEV) catalog as of the publication date.
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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