CVE-2021-1519— Cisco AnyConnect Secure Mobility Client Profile Modification Vulnerability
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I. Basic Information for CVE-2021-1519
Vulnerability Information
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Vulnerability Title
Cisco AnyConnect Secure Mobility Client Profile Modification Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client Software could allow an authenticated, local attacker to overwrite VPN profiles on an affected device. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted IPC message to the AnyConnect process. A successful exploit could allow the attacker to modify VPN profile files. To exploit this vulnerability, the attacker must have valid credentials on the affected system.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco AnyConnect Secure Mobility Client 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Anyconnect Secure Mobility Client是美国思科（Cisco）公司的一款用于安全连接的VPN客户端软件。 Cisco AnyConnect Secure Mobility Client Software 存在输入验证错误漏洞，允许经过身份验证的本地攻击者可利用该漏洞覆盖受影响设备上的VPN配置文件。
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 AnyConnect Secure Mobility Client | n/a | - |
II. Public POCs for CVE-2021-1519
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-profile-AggMUCDgvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2021-1519
Same Patch Batch · Cisco · 2021-05-06 · 41 CVEs total
| CVE-2021-1275 | 9.8 CRITICAL | Cisco SD-WAN vManage Software Vulnerabilities |
| CVE-2021-1508 | 9.8 CRITICAL | Cisco SD-WAN vManage Software Vulnerabilities |
| CVE-2021-1506 | 9.8 CRITICAL | Cisco SD-WAN vManage Software Vulnerabilities |
| CVE-2021-1505 | 9.8 CRITICAL | Cisco SD-WAN vManage Software Vulnerabilities |
| CVE-2021-1498 | 9.8 CRITICAL | Cisco HyperFlex HX Command Injection Vulnerabilities |
| CVE-2021-1497 | 9.8 CRITICAL | Cisco HyperFlex HX Command Injection Vulnerabilities |
| CVE-2021-1468 | 9.8 CRITICAL | Cisco SD-WAN vManage Software Vulnerabilities |
| CVE-2021-1400 | 8.8 HIGH | Cisco Small Business 100, 300, and 500 Series Wireless Access Points Vulnerabilities |
| CVE-2021-1401 | 8.8 HIGH | Cisco Small Business 100, 300, and 500 Series Wireless Access Points Vulnerabilities |
| CVE-2021-1284 | 8.8 HIGH | Cisco SD-WAN vManage Software Authentication Bypass Vulnerability |
| CVE-2021-1421 | 7.8 HIGH | Cisco Enterprise NFV Infrastructure Software Command Injection Vulnerability |
| CVE-2021-1513 | 7.5 HIGH | Cisco SD-WAN Software vDaemon Denial of Service Vulnerability |
| CVE-2021-1509 | 7.5 HIGH | Cisco SD-WAN vEdge Software Buffer Overflow Vulnerabilities |
| CVE-2021-1510 | 7.5 HIGH | Cisco SD-WAN vEdge Software Buffer Overflow Vulnerabilities |
| CVE-2021-1511 | 7.5 HIGH | Cisco SD-WAN vEdge Software Buffer Overflow Vulnerabilities |
| CVE-2021-1365 | 7.1 HIGH | Cisco Unified Communications Manager IM & Presence Service SQL Injection Vulnerabilities |
| CVE-2021-1363 | 7.1 HIGH | Cisco Unified Communications Manager IM & Presence Service SQL Injection Vulnerabilities |
| CVE-2021-1426 | 7.0 HIGH | Cisco AnyConnect Secure Mobility Client for Windows DLL and Executable Hijacking Vulnerabi |
| CVE-2021-1427 | 7.0 HIGH | Cisco AnyConnect Secure Mobility Client for Windows DLL and Executable Hijacking Vulnerabi |
| CVE-2021-1430 | 7.0 HIGH | Cisco AnyConnect Secure Mobility Client for Windows DLL and Executable Hijacking Vulnerabi |
Showing top 20 of 41 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Cisco AnyConnect Secure Mobility Client
- CVE-2021-40124
Cisco AnyConnect Secure Mobility Client for Windows with Net - CVE-2021-34788
Cisco AnyConnect Secure Mobility Client for Linux and Mac OS - CVE-2021-1567
Cisco AnyConnect Secure Mobility Client for Windows with VPN - CVE-2021-1568
Cisco AnyConnect Secure Mobility Client for Windows Denial o - CVE-2021-1426
Cisco AnyConnect Secure Mobility Client for Windows DLL and
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
Same weakness: CWE-20
V. Comments for CVE-2021-1519
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