CVE-2025-48796 is a stack-based buffer overflow vulnerability identified in the GIMP image editor, specifically within the ani_load_image() function responsible for loading ANI (animated cursor) files. The flaw arises because the function does not properly validate or limit the amount of data read from ANI files, allowing an attacker to supply a maliciously crafted ANI file that writes more data to the stack buffer than it can accommodate. This overflow can overwrite adjacent memory, including control flow data such as return addresses, enabling arbitrary code execution under the privileges of the user running GIMP. The vulnerability requires user interaction, as the user must open the malicious ANI file. The CVSS v3.1 score is 7.3 (high), reflecting the vulnerability's potential for full system compromise, but with limited attack vector (local access) and requiring low privileges and user interaction. The affected product is Red Hat Enterprise Linux 6, which bundles GIMP. No patches or known exploits are currently reported, but the vulnerability is publicly disclosed and should be considered a significant risk. The flaw impacts confidentiality, integrity, and availability by allowing arbitrary code execution, potentially leading to system takeover or data compromise.

The impact of CVE-2025-48796 is substantial for organizations using Red Hat Enterprise Linux 6 with GIMP installed. Successful exploitation can lead to arbitrary code execution, allowing attackers to execute malicious payloads with the privileges of the user opening the ANI file. This can result in full system compromise, data theft, unauthorized modifications, or denial of service. Since exploitation requires user interaction and local access, the threat is more likely in environments where users frequently handle untrusted ANI files, such as graphic design or multimedia departments. The vulnerability could be leveraged in targeted attacks or insider threat scenarios. Organizations relying on Red Hat Enterprise Linux 6, especially those with legacy systems or limited patching capabilities, face increased risk. The flaw undermines system security, potentially affecting confidentiality, integrity, and availability of critical data and services.

To mitigate CVE-2025-48796, organizations should: 1) Monitor for and apply official patches or updates from Red Hat as soon as they become available to fix the vulnerability in GIMP. 2) Restrict or disable the opening of ANI files within GIMP or related applications, especially from untrusted sources, to reduce exposure. 3) Implement application whitelisting and sandboxing to limit the impact of potential exploitation. 4) Employ runtime protections such as stack canaries, Address Space Layout Randomization (ASLR), and Data Execution Prevention (DEP) to make exploitation more difficult. 5) Educate users about the risks of opening untrusted ANI files and enforce strict file handling policies. 6) Consider upgrading to newer supported operating system versions where possible, as Red Hat Enterprise Linux 6 is an older release with limited ongoing support. 7) Use intrusion detection systems to monitor for suspicious activity related to GIMP or ANI file handling. These steps collectively reduce the likelihood and impact of exploitation.