Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-20137

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是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS存在访问控制错误漏洞，该漏洞源于访问控制列表配置不当，可能导致绕过ACL限制。

CVSS 4.7 · Medium EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1548.001 · Setuid and Setgid
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-20137

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the access control list (ACL) programming of Cisco IOS Software that is running on Cisco Catalyst 1000 Switches and Cisco Catalyst 2960L Switches could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to the use of both an IPv4 ACL and a dynamic ACL of IP Source Guard on the same interface, which is an unsupported configuration. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to bypass an ACL on the affected device. Note: Cisco documentation has been updated to reflect that this is an unsupported configuration. However, Cisco is publishing this advisory because the device will not prevent an administrator from configuring both features on the same interface. There are no plans to implement the ability to configure both features on the same interface on Cisco Catalyst 1000 or Catalyst 2960L Switches.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco IOS 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS存在访问控制错误漏洞，该漏洞源于访问控制列表配置不当，可能导致绕过ACL限制。
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(5a)E -

II. Public POCs for CVE-2025-20137

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-20137

请登录查看更多情报信息。

Same Patch Batch · Cisco · 2025-05-07 · 35 CVEs total

CVE-2025-20188 10.0 CRITICAL Cisco IOS XE 信任管理问题漏洞
CVE-2025-20186 8.8 HIGH Cisco IOS XE 操作系统命令注入漏洞
CVE-2025-20182 8.6 HIGH Cisco Adaptive Security Appliance Software, Firepower Threat Defense Software and IOS XE S
CVE-2025-20154 8.6 HIGH Cisco IOS, IOS XE and IOS XR Software TWAMP Denial of Service Vulnerability
CVE-2025-20162 8.6 HIGH Cisco IOS XE 资源管理错误漏洞
CVE-2025-20164 8.3 HIGH Cisco IOS 安全漏洞
CVE-2025-20122 7.8 HIGH Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability
CVE-2025-20192 7.7 HIGH Cisco IOS XE 安全漏洞
CVE-2025-20191 7.4 HIGH Multiple Cisco Products Denial of Service Vulnerability
CVE-2025-20202 7.4 HIGH Cisco IOS XE Wireless Controller Software 安全漏洞
CVE-2025-20189 7.4 HIGH Cisco IOS XE 安全漏洞
CVE-2025-20140 7.4 HIGH Cisco IOS XE 安全漏洞
CVE-2025-20210 7.3 HIGH Cisco Catalyst Center Unprotected API Endpoint
CVE-2025-20197 6.7 MEDIUM Cisco IOS XE 输入验证错误漏洞
CVE-2025-20200 6.7 MEDIUM Cisco IOS XE 代码问题漏洞
CVE-2025-20201 6.7 MEDIUM Cisco IOS XE 代码问题漏洞
CVE-2025-20190 6.5 MEDIUM Cisco IOS XE Wireless Controller Software 访问控制错误漏洞
CVE-2025-20193 6.5 MEDIUM Cisco IOS XE 操作系统命令注入漏洞
CVE-2025-20187 6.5 MEDIUM Cisco SD-WAN Manager Software Arbitrary File Creation Vulnerability
CVE-2025-20155 6.0 MEDIUM Cisco IOS XE 安全漏洞

Showing top 20 of 35 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: IOS
Same vendor: Cisco
Same weakness: CWE-284

V. Comments for CVE-2025-20137

No comments yet

Leave a comment