CVE-2020-3465— Cisco IOS XE Software Ethernet Frame Denial of Service Vulnerability
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I. Basic Information for CVE-2020-3465
Vulnerability Information
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Vulnerability Title
Cisco IOS XE Software Ethernet Frame Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a device to reload. The vulnerability is due to incorrect handling of certain valid, but not typical, Ethernet frames. An attacker could exploit this vulnerability by sending the Ethernet frames onto the Ethernet segment. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XE Software 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS和IOS XE都是美国思科（Cisco）公司的产品。CLI是其中的一个命令行界面。 Cisco IOS XE Software中存在安全漏洞，该漏洞源于对某些有效的但不是典型的以太网帧的不正确处理造成的，该漏洞允许攻击者可以通过将以太网帧发送到以太网段来利用此漏洞。
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 IOS XE Software 16.8.1 | n/a | - |
II. Public POCs for CVE-2020-3465
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-le-drTOB625vendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2020-3465
Same Patch Batch · Cisco · 2020-09-24 · 52 CVEs total
| CVE-2020-3141 | 8.8 HIGH | Cisco IOS XE Software Privilege Escalation Vulnerabilities |
| CVE-2020-3425 | 8.8 HIGH | Cisco IOS XE Software Privilege Escalation Vulnerabilities |
| CVE-2020-3480 | 8.6 HIGH | Cisco IOS XE Software Zone-Based Firewall Denial of Service Vulnerabilities |
| CVE-2020-3421 | 8.6 HIGH | Cisco IOS XE Software Zone-Based Firewall Denial of Service Vulnerabilities |
| CVE-2020-3399 | 8.6 HIGH | Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Se |
| CVE-2020-3426 | 7.5 HIGH | Cisco IOS Software for Cisco Industrial Routers Virtual-LPWA Unauthorized Access Vulnera |
| CVE-2020-3508 | 7.4 HIGH | Cisco IOS XE Software for Cisco ASR 1000 Series 20-Gbps Embedded Services Processor IP ARP |
| CVE-2020-3396 | 6.8 MEDIUM | Cisco IOS XE Software IOx Guest Shell USB SSD Namespace Protection Privilege Escalation Vu |
| CVE-2020-3417 | 6.8 MEDIUM | Cisco IOS XE Software Arbitrary Code Execution Vulnerability |
| CVE-2020-3416 | 6.7 MEDIUM | Cisco IOS XE Software for Cisco ASR 900 Series Route Switch Processor 3 Arbitrary Code Exe |
| CVE-2020-3513 | 6.7 MEDIUM | Cisco IOS XE Software for Cisco ASR 900 Series Route Switch Processor 3 Arbitrary Code Exe |
| CVE-2020-3479 | 6.1 MEDIUM | Cisco IOS and IOS XE Software MP-BGP EVPN Denial of Service Vulnerability |
| CVE-2020-3393 | 6.0 MEDIUM | Cisco IOS XE Software IOx Application Hosting Privilege Escalation Vulnerability |
| CVE-2020-3503 | 6.0 MEDIUM | Cisco IOS XE Software Guest Shell Unauthorized File System Access Vulnerability |
| CVE-2020-3423 | 5.1 MEDIUM | Cisco IOS XE Software Arbitrary Code Execution Vulnerability |
| CVE-2020-3474 | 4.3 MEDIUM | Cisco IOS XE Software Web Management Framework Vulnerabilities |
| CVE-2020-3475 | 4.3 MEDIUM | Cisco IOS XE Software Web Management Framework Vulnerabilities |
| CVE-2020-3359 | Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers Multicast DNS Denial o | |
| CVE-2020-3390 | Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family SNMP Trap Denial of | |
| CVE-2020-3476 | Cisco IOS XE Software Arbitrary File Overwrite Vulnerability |
Showing top 20 of 52 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: Cisco
- CVE-2026-20219
Cisco Slido 安全漏洞 - CVE-2026-20034
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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-20
V. Comments for CVE-2020-3465
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