Cisco Small Business RV042, RV042G, RV320, and RV325 Remote Command Execution Vulnerabilities
Description
A vulnerability in the web-based management interface of Cisco Small Business RV042, RV042G, RV320, and RV325 Routers could allow an authenticated, Administrator-level, remote attacker to execute arbitrary code as the root user. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device.
This vulnerability is due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system as the root user.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
An authenticated, Administrator-level attacker can achieve root RCE on end-of-life Cisco RV042, RV042G, RV320, and RV325 routers via crafted HTTP requests due to input validation flaws.
Vulnerability
An improper validation of user-supplied input vulnerability (CWE-121/CWE-122) exists in the web-based management interface of Cisco Small Business RV042, RV042G, RV320, and RV325 routers. All software releases for these products are affected [1]. The vulnerability is triggered when an authenticated Administrator-level user sends specially crafted HTTP requests to the device's web management interface.
Exploitation
To exploit this vulnerability, an attacker must have valid Administrator credentials on the target device. No additional network access beyond reachability to the web management interface is required. The attacker sends crafted HTTP requests containing malicious input that is not properly validated, leading to memory corruption or code injection [1].
Impact
Successful exploitation allows the attacker to execute arbitrary code on the underlying operating system as the root user. This provides full control over the device, including the ability to read/write files, install malware, pivot to internal networks, or cause denial of service [1].
Mitigation
Cisco has confirmed that these products are past their End of Software Maintenance Releases and will not release patches. No workarounds are available [1]. Organizations should replace affected routers with supported models as soon as possible. These vulnerabilities are not currently listed in the Known Exploited Vulnerabilities (KEV) catalog.
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: 4.0.2.08-tm
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
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