Deserialization in Cisco Small Business Rv Series Router Firmware
CVE-2021-1414
Multiple vulnerabilities in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to execute arbitrary code with elevated privileges equivalent to the web service process on an affected device. These vulnerabilities exist because HTTP requests are not properly validated. An attacker could exploit these vulnerabilities by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to remotely execute arbitrary code on the device.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.019 (78.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv34x… (vendor-advisory, Vendor Advisory)
- www.zerodayinitiative.com/advisories/ZDI-21-559/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-1414?
- CVE-2021-1414 is a medium-severity vulnerability in Cisco Small Business Rv Series Router Firmware, classified under Deserialization of Untrusted Data. CVSS score: 6.3/10. Published 2021-04-08.
- How severe is CVE-2021-1414?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2021-1414 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.