CVE-2020-3451— Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution Vulnerabilities
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I. Basic Information for CVE-2020-3451
Vulnerability Information
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Vulnerability Title
Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution Vulnerabilities
Source: NVD (National Vulnerability Database)
Vulnerability Description
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV340 Series Routers could allow an authenticated, remote attacker with administrative credentials to execute arbitrary commands on the underlying operating system (OS) as a restricted user. For more information about these vulnerabilities, see the Details section of this advisory.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Small Business RV340 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Small Business RV340是美国思科（Cisco）公司的一个路由器。连接两个或多个网络的硬件设备，在网络间起网关的作用。 Cisco?Small Business RV340系列路由器存在输入验证错误漏洞，该漏洞允许远程攻击者以受限用户的身份在基础操作系统上执行任意命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco Small Business RV Series Router Firmware | n/a | - |
II. Public POCs for CVE-2020-3451
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://www.zerodayinitiative.com/advisories/ZDI-20-1100/x_refsource_MISC
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-osinj-rce-pwTkPCJvvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2020-3451
Same Patch Batch · Cisco · 2020-09-04 · 15 CVEs total
| CVE-2020-3495 | 9.9 CRITICAL | Cisco Jabber for Windows Message Handling Arbitrary Code Execution Vulnerability |
| CVE-2020-3430 | 8.8 HIGH | Cisco Jabber for Windows Protocol Handler Command Injection Vulnerability |
| CVE-2020-3530 | 8.4 HIGH | Cisco IOS XR Authenticated User Privilege Escalation Vulnerability |
| CVE-2020-3478 | 8.1 HIGH | Cisco Enterprise NFV Infrastructure Software File Overwrite Vulnerability |
| CVE-2020-3498 | 6.5 MEDIUM | Cisco Jabber for Windows Information Disclosure Vulnerability |
| CVE-2020-3545 | 6.0 MEDIUM | Cisco FXOS Software Buffer Overflow Vulnerability |
| CVE-2020-3537 | 5.7 MEDIUM | Cisco Jabber for Windows Universal Naming Convention Link Handling Vulnerability |
| CVE-2020-3542 | 5.3 MEDIUM | Cisco Webex Training Unauthorized Meeting Join Vulnerability |
| CVE-2020-3453 | 4.7 MEDIUM | Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution Vuln |
| CVE-2020-3541 | 4.4 MEDIUM | Cisco Webex Meetings Client for Windows, Webex Meetings Desktop App, and Webex Teams Infor |
| CVE-2020-3547 | 4.3 MEDIUM | Cisco Email Security Appliance, Cisco Content Security Management Appliance, and Cisco Web |
| CVE-2020-3365 | 4.3 MEDIUM | Cisco Enterprise NFV Infrastructure Software Path Traversal Vulnerability |
| CVE-2020-3473 | Cisco IOS XR Software Authenticated User Privilege Escalation Vulnerability | |
| CVE-2020-3546 | Cisco Email Security Appliance Information Disclosure Vulnerability |
IV. Related Vulnerabilities
Same product: Cisco Small Business RV Series Router Firmware
- CVE-2020-3431
Cisco Small Business RV Series Routers Cross-Site Scripting - CVE-2024-20524
Cisco Small Business RV042, RV042G, RV320, and RV325 Denial - CVE-2024-20523
Cisco Small Business RV042, RV042G, RV320, and RV325 Denial - CVE-2024-20522
Cisco Small Business RV042, RV042G, RV320, and RV325 Denial - CVE-2024-20521
Cisco Small Business RV042, RV042G, RV320, and RV325 Remote
Same vendor: Cisco
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Cisco Slido 安全漏洞 - CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability - CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerabi - CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
Same weakness: CWE-119
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Firebird has Pre-Auth DOS when Processing Out of Order CNCT_ - CVE-2026-34864
Huawei HarmonyOS 安全漏洞 - CVE-2026-4149
Sonos Era 300 SMB Response Out-Of-Bounds Access Remote Code - CVE-2026-34988
Wasmtime leaks data between pooling allocator instances
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