CVE-2021-1614— Cisco SD-WAN Software Information Disclosure Vulnerability
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I. Basic Information for CVE-2021-1614
Vulnerability Information
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Vulnerability Title
Cisco SD-WAN Software Information Disclosure Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the Multiprotocol Label Switching (MPLS) packet handling function of Cisco SD-WAN Software could allow an unauthenticated, remote attacker to gain access to information stored in MPLS buffer memory. This vulnerability is due to insufficient handling of malformed MPLS packets that are processed by a device that is running Cisco SD-WAN Software. An attacker could exploit this vulnerability by sending a crafted MPLS packet to an affected device that is running Cisco SD-WAN Software or Cisco SD-WAN vManage Software. A successful exploit could allow the attacker to gain unauthorized access to sensitive information.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
缓冲区上溢读取
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco SD-WAN vManage Software 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco SD-WAN vManage Software是美国思科（Cisco）公司的一款用于SD-WAN（软件定义广域网络）解决方案的管理软件。 Cisco SD-WAN Software 存在安全漏洞，未经认证的远程攻击者可利用该漏洞访问存储在MPLS缓冲区内存中的信息。
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 SD-WAN Solution | n/a | - |
II. Public POCs for CVE-2021-1614
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdw-mpls-infodisclos-MSSRFkZqvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2021-1614
Same Patch Batch · Cisco · 2021-07-22 · 8 CVEs total
| CVE-2021-1601 | 8.3 HIGH | Cisco Intersight Virtual Appliance IPv4 and IPv6 Forwarding Vulnerabilities |
| CVE-2021-1600 | 8.3 HIGH | Cisco Intersight Virtual Appliance IPv4 and IPv6 Forwarding Vulnerabilities |
| CVE-2021-1618 | 6.5 MEDIUM | Cisco Intersight Virtual Appliance Vulnerabilities |
| CVE-2021-1617 | 6.5 MEDIUM | Cisco Intersight Virtual Appliance Vulnerabilities |
| CVE-2021-1518 | 6.3 MEDIUM | Cisco Firepower Device Manager On-Box Software Remote Code Execution Vulnerability |
| CVE-2021-34700 | 5.5 MEDIUM | Cisco SD-WAN vManage Software Information Disclosure Vulnerability |
| CVE-2021-1599 | 5.4 MEDIUM | Cisco Unified Customer Voice Portal Cross-Site Scripting Vulnerability |
IV. Related Vulnerabilities
Same product: Cisco SD-WAN Solution
- CVE-2023-20262
Cisco Catalyst SD-WAN Manager 安全漏洞 - CVE-2022-20850
Cisco SD-WAN Arbitrary File Deletion Vulnerability - CVE-2022-20818
Cisco SD-WAN Software Privilege Escalation Vulnerabilities - CVE-2022-20716
Cisco SD-WAN Solution Improper Access Control Vulnerability - CVE-2021-1546
Cisco SD-WAN Software Information Disclosure Vulnerability
Same vendor: Cisco
- CVE-2026-20219
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
V. Comments for CVE-2021-1614
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