CVE-2025-40911— Net::CIDR::Set versions 0.10 through 0.13 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
RRWO Net::CIDR::Set
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.
MetaCPAN Net::CIDR::Set是MetaCPAN基金会的一个库。 MetaCPAN Net::CIDR::Set 0.10至0.13版本存在安全漏洞，该漏洞源于未正确处理IP CIDR地址字符串中的前导零，可能导致访问控制绕过。
Possible ATT&CK Techniques 1 AI
T1078 · Valid Accounts
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I. Basic Information for CVE-2025-40911
Vulnerability Information
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Vulnerability Title
Net::CIDR::Set versions 0.10 through 0.13 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::CIDR::Set versions 0.10 through 0.13 for Perl does not properly handle 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.
Net::CIDR::Set used code from Net::CIDR::Lite, which had a similar vulnerability CVE-2021-47154.
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
MetaCPAN Net::CIDR::Set 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MetaCPAN Net::CIDR::Set是MetaCPAN基金会的一个库。 MetaCPAN Net::CIDR::Set 0.10至0.13版本存在安全漏洞，该漏洞源于未正确处理IP CIDR地址字符串中的前导零，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 |
|---|---|---|---|---|
| RRWO | Net::CIDR::Set | 0.10 ~ 0.13 | - |
|
II. Public POCs for CVE-2025-40911
| # | POC Description | Source Link | Shenlong Link |
|---|
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