CVE-2025-65287 is a directory traversal vulnerability found in the cgi-bin/upload.cgi script of SNMP Web Pro version 1.1. The vulnerability arises because the CGI script concatenates user-supplied parameters directly onto a base file path (/var/www/files/userScript/) using unsafe functions like memcpy and strcat without any validation or canonicalization. This lack of sanitization allows attackers to include '../' sequences in the input, enabling them to traverse directories and access arbitrary files outside the intended directory scope. Furthermore, the download functionality of the CGI echoes these unsanitized parameters into the Content-Disposition HTTP header, which can lead to HTTP header injection attacks. The vulnerability requires no authentication (AV:N/AC:L/PR:N/UI:N) and impacts confidentiality (C:H) without affecting integrity or availability. The CVSS 3.1 score is 7.5, indicating a high severity level. The vulnerability is classified under CWE-22 (Improper Limitation of a Pathname to a Restricted Directory). No patches or fixes have been linked yet, and no known exploits are reported in the wild as of the publication date. The vulnerability could be exploited remotely by sending crafted HTTP requests to the vulnerable CGI endpoint, allowing attackers to read sensitive files such as configuration files, credentials, or other critical data stored on the server.

For European organizations, the impact of CVE-2025-65287 can be significant, particularly for those using SNMP Web Pro 1.1 in enterprise networks, managed service providers, or critical infrastructure sectors such as telecommunications, utilities, and government agencies. The ability to read arbitrary files without authentication compromises confidentiality, potentially exposing sensitive information including credentials, private keys, or internal configuration data. This could facilitate further attacks such as privilege escalation, lateral movement, or targeted espionage. The header injection risk could also be leveraged for HTTP response splitting or cross-site scripting attacks, impacting web application security. Given the high severity and ease of exploitation, organizations face increased risk of data breaches and regulatory non-compliance under GDPR if personal or sensitive data is exposed. The lack of known exploits currently provides a window for proactive mitigation before widespread exploitation occurs.

Organizations should immediately audit their environments to identify deployments of SNMP Web Pro 1.1 and specifically the vulnerable cgi-bin/upload.cgi component. Until an official patch is released, practical mitigations include implementing web application firewalls (WAFs) with custom rules to detect and block directory traversal patterns such as '../' sequences in HTTP requests targeting the CGI endpoint. Restricting access to the vulnerable CGI script via network segmentation, IP whitelisting, or VPN access can reduce exposure. Additionally, monitoring web server logs for suspicious requests and unusual file access patterns can help detect attempted exploitation. Administrators should avoid exposing the vulnerable CGI publicly and consider disabling or removing the upload.cgi script if not essential. Once a patch becomes available, prompt application of updates is critical. Finally, organizations should review and harden HTTP header handling to prevent injection attacks and conduct regular security assessments to verify the effectiveness of mitigations.