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CVE-2025-20149

Quick assessment

Affected
Cisco IOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco IOS和Cisco IOS XE都是美国思科（Cisco）公司的产品。Cisco IOS是一套为其网络设备开发的操作系统。Cisco IOS XE是一个操作系统。用于企业有线和无线访问，汇聚，核心和WAN的单一操作系统，Cisco IOS XE降低了业务和网络的复杂性。 Cisco IOS和Cisco IOS XE存在安全漏洞，该漏洞源于缓冲区溢出，可能导致设备意外重启，造成拒绝服务。

CVSS 6.5 · Medium EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2025-20149

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the CLI of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to a buffer overflow. An attacker with a low-privileged account could exploit this vulnerability by using crafted commands at the CLI prompt. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco IOS和Cisco IOS XE 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS和Cisco IOS XE都是美国思科（Cisco）公司的产品。Cisco IOS是一套为其网络设备开发的操作系统。Cisco IOS XE是一个操作系统。用于企业有线和无线访问，汇聚，核心和WAN的单一操作系统，Cisco IOS XE降低了业务和网络的复杂性。 Cisco IOS和Cisco IOS XE存在安全漏洞，该漏洞源于缓冲区溢出，可能导致设备意外重启，造成拒绝服务。
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 IOS 15.2(1)S -
Cisco Cisco IOS XE Software 3.7.0S -

II. Public POCs for CVE-2025-20149

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III. Intelligence Information for CVE-2025-20149

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Same Patch Batch · Cisco · 2025-09-24 · 17 CVEs total

CVE-2025-20334 8.8 HIGH Cisco IOS XE 命令注入漏洞
CVE-2025-20315 8.6 HIGH Cisco IOS XE 安全漏洞
CVE-2025-20160 8.1 HIGH Cisco IOS和Cisco IOS XE Software 授权问题漏洞
CVE-2025-20327 7.7 HIGH Cisco IOS 安全漏洞
CVE-2025-20312 7.7 HIGH Cisco IOS XE 安全漏洞
CVE-2025-20352 7.7 HIGH Cisco IOS和Cisco IOS XE Software 安全漏洞
CVE-2025-20311 7.4 HIGH Cisco IOS XE Software 代码问题漏洞
CVE-2025-20314 6.7 MEDIUM Cisco IOS XE 安全漏洞
CVE-2025-20313 6.7 MEDIUM Cisco IOS XE 安全漏洞
CVE-2025-20240 6.1 MEDIUM Cisco IOS XE Software 安全漏洞
CVE-2025-20338 6.0 MEDIUM Cisco IOS XE 安全漏洞
CVE-2025-20339 5.8 MEDIUM Cisco SD-WAN vEdge Software Access Control List Bypass Vulnerability
CVE-2025-20316 5.3 MEDIUM Cisco IOS XE 访问控制错误漏洞
CVE-2025-20293 5.3 MEDIUM Cisco IOS XE Software 安全漏洞
CVE-2025-20365 4.3 MEDIUM Cisco Access Point Software 安全漏洞
CVE-2025-20364 4.3 MEDIUM Cisco Wireless LAN Controller 安全漏洞

IV. Related Vulnerabilities

Same product: IOS
Same vendor: Cisco
Same weakness: CWE-120

V. Comments for CVE-2025-20149

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