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CVE-2025-40910— Net::IP::LPM version 1.10 for Perl does not properly consider leading zero characters in IP CIDR address strings, which could allow attackers to bypass access control that is based on IP addresses

Quick assessment

Affected
TPODER Net::IP::LPM
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.

Net::IP::LPM是Tomas Podermanski个人开发者的一个 Perl 模块，用于实现最长前缀匹配（Longest Prefix Matching，LPM）算法。 Net::IP::LPM 1.10版本存在安全漏洞，该漏洞源于未正确处理IP地址前导零，可能导致访问控制绕过。

AI Predicted 6.5 Difficulty: Easy EPSS 0.28% · P20

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
TPODER Net::IP::LPM 1.10 affected
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I. Basic Information for CVE-2025-40910

Vulnerability Information
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Vulnerability Title
Net::IP::LPM version 1.10 for Perl does not properly consider leading zero characters in IP CIDR address strings, which could allow attackers to bypass access control that is based on IP addresses
Source: CVE Program / CVE List V5
Vulnerability Description
Net::IP::LPM version 1.10 for Perl does not properly consider leading zero characters in IP CIDR address strings, which could allow attackers to bypass access control that is based on IP addresses. Leading zeros are used to indicate octal numbers, which can confuse users who are intentionally using octal notation, as well as users who believe they are using decimal notation.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1287
Source: CVE Program / CVE List V5
Vulnerability Title
Net::IP::LPM 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Net::IP::LPM是Tomas Podermanski个人开发者的一个 Perl 模块，用于实现最长前缀匹配（Longest Prefix Matching，LPM）算法。 Net::IP::LPM 1.10版本存在安全漏洞，该漏洞源于未正确处理IP地址前导零，可能导致访问控制绕过。
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
TPODER Net::IP::LPM 1.10 -

II. Public POCs for CVE-2025-40910

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III. Intelligence Information for CVE-2025-40910

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Vendor Advisories for CVE-2025-40910 (1)

Other References for CVE-2025-40910 (2)

IV. Related Vulnerabilities

Same product: Net::IP::LPM
Same vendor: TPODER
Same weakness: CWE-1287

V. Comments for CVE-2025-40910

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