CVE-2025-2777 is an XML External Entity (XXE) vulnerability classified under CWE-611, found in SysAid On-Prem versions up to 23.3.40. The vulnerability arises from improper restriction of XML external entity references in the lshw processing functionality, which is used to gather hardware information. An attacker can craft malicious XML payloads that exploit this flaw without requiring any authentication or user interaction. This exploitation enables reading arbitrary files on the server, which can disclose sensitive configuration files or credentials. More critically, it can lead to administrator account takeover, allowing full control over the SysAid instance. The vulnerability has a CVSS 3.1 base score of 9.3, indicating high exploitability (network vector, low attack complexity) and severe impact on confidentiality and partial impact on availability. Although no public exploits are currently known, the vulnerability's nature and ease of exploitation make it a significant threat. SysAid On-Prem is widely used by enterprises for IT service management, making this vulnerability particularly dangerous in environments where sensitive IT infrastructure is managed. The lack of authentication requirement means attackers can exploit this remotely, increasing the risk of widespread compromise. The vulnerability is currently published and tracked by CISA, highlighting its importance in cybersecurity advisories.

For European organizations, the impact of CVE-2025-2777 can be severe. Compromise of SysAid On-Prem instances could lead to unauthorized disclosure of sensitive IT infrastructure data, including configuration files and credentials. Administrator account takeover would allow attackers to manipulate IT service management processes, potentially disrupting incident response, change management, and asset tracking. This could result in operational downtime, data breaches, and loss of trust. Organizations in critical sectors such as finance, healthcare, and government are particularly vulnerable due to their reliance on ITSM tools for maintaining security and compliance. The ability to exploit this vulnerability remotely without authentication increases the attack surface and risk of automated attacks. Additionally, the partial impact on availability could lead to denial of service conditions affecting IT support functions. The overall risk is amplified by the strategic importance of ITSM platforms in maintaining enterprise cybersecurity posture.

1. Immediately monitor for any unusual or unauthorized XML input to the lshw processing functionality within SysAid On-Prem. 2. Apply vendor patches or updates as soon as they become available; prioritize patching SysAid On-Prem instances running versions up to 23.3.40. 3. If patches are not yet available, implement network-level protections such as web application firewalls (WAFs) with rules to detect and block malicious XML payloads targeting XXE vectors. 4. Restrict access to SysAid On-Prem management interfaces to trusted IP ranges and enforce strong network segmentation to limit exposure. 5. Disable or restrict XML external entity processing in the application configuration if possible, or use XML parsers that are hardened against XXE attacks. 6. Conduct thorough audits of SysAid logs and system files for signs of exploitation or unauthorized access. 7. Educate IT staff on the risks of XXE vulnerabilities and ensure incident response plans include scenarios involving ITSM platform compromise. 8. Regularly back up SysAid configurations and data to enable recovery in case of compromise.