CVE & CISA-KEV Catalog

CVE-2021-1414

MEDIUMEPSS 77th pctl
6.3
CVSS v3
NVD

Description

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.

How to fix

Remediation Available
rv340 firmwareNVD
Affected:< 1.0.03.21Fixed in:1.0.03.21CVE-2021-1414derived from NVD
rv340w firmwareNVD
Affected:< 1.0.03.21Fixed in:1.0.03.21CVE-2021-1414derived from NVD
rv345 firmwareNVD
Affected:< 1.0.03.21Fixed in:1.0.03.21CVE-2021-1414derived from NVD
rv345p firmwareNVD
Affected:< 1.0.03.21Fixed in:1.0.03.21CVE-2021-1414derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Exploit Intelligence

1.86%probability of exploitation in 30 days
77thpercentile

Elevated risk: more likely to be exploited than 77% of all known CVEs.

References

Vendor Advisory1
Third-Party Advisory1

Related Vulnerabilities

Other CWE-502 (Deserialization of Untrusted Data) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-0669High7.2100%KEV + RansomFix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2021-35464Critical9.8100%KEV + RansomFix
CVE-2023-29300Critical9.8100%KEV + Ransom-
CVE-2025-53770Critical9.8100%KEV + RansomFix
CVE-2022-47986Critical9.8100%KEV + Ransom-
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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.