CVE-2025-20352
Quick assessment
Affected
Cisco IOS
Exploitation
Confirmed exploitation in the wild; remediate immediately
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 Software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 Software是一种网络操作系统。 Cisco IOS和Cisco IOS XE Software存在安全漏洞，该漏洞源于SNMP子系统存在栈溢出，可能导致拒绝服务或执行任意代码。
In-the-Wild Activity Observed
cisa_kev · confirmed
Possible ATT&CK Techniques 3 AI
T1068 · Exploitation for Privilege Escalation T1133 · External Remote Services T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-20352
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software and Cisco IOS XE Software could allow the following:
An authenticated, remote attacker with low privileges could cause a denial of service (DoS) condition on an affected device that is running Cisco IOS Software or Cisco IOS XE Software. To cause the DoS, the attacker must have the SNMPv2c or earlier read-only community string or valid SNMPv3 user credentials.
An authenticated, remote attacker with high privileges could execute code as the root user on an affected device that is running Cisco IOS XE Software. To execute code as the root user, the attacker must have the SNMPv1 or v2c read-only community string or valid SNMPv3 user credentials and administrative or privilege 15 credentials on the affected device.
An attacker could exploit this vulnerability by sending a crafted SNMP packet to an affected device over IPv4 or IPv6 networks.
This vulnerability is due to a stack overflow condition in the SNMP subsystem of the affected software. A successful exploit could allow a low-privileged attacker to cause the affected system to reload, resulting in a DoS condition, or allow a high-privileged attacker to execute arbitrary code as the root user and obtain full control of the affected system.
Note: This vulnerability affects all versions of SNMP.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco IOS和Cisco IOS XE Software 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS和Cisco IOS XE Software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 Software是一种网络操作系统。 Cisco IOS和Cisco IOS XE Software存在安全漏洞，该漏洞源于SNMP子系统存在栈溢出，可能导致拒绝服务或执行任意代码。
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)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | IOS | 12.2(55)SE | - |
|
| Cisco | Cisco IOS XE Software | 3.5.0E | - |
|
| Cisco | Cisco IOS XE Catalyst SD-WAN | 16.9.1 | - |
|
II. Public POCs for CVE-2025-20352
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | CVE-2025-20352 SNMP Exposure Check (onesixtyone + parser) | https://github.com/scadastrangelove/CVE-2025-20352 | POC Details |
AI-Generated POC
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No public POC found.
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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-2025-20311 | 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-2025-20149 | 6.5 MEDIUM | Cisco IOS和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 |
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V. Comments for CVE-2025-20352
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