CVE-2024-11516: 
IrfanView vulnerability analysis and mitigation

CVE-2024-11516 is a heap-based buffer overflow vulnerability discovered in IrfanView's JPM file parsing functionality. The vulnerability was disclosed on November 21, 2024, affecting IrfanView installations up to version 4.67 (both x64 and x86 versions). This security flaw requires user interaction, specifically opening a malicious file or visiting a malicious page, to be exploited (Zero Day Initiative).

The vulnerability stems from improper validation of user-supplied data length during JPM file parsing, which can lead to a heap-based buffer overflow condition. The issue has been assigned a CVSS v3.1 base score of 7.8 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The vulnerability is classified under CWE-787 (Out-of-bounds Write) and CWE-122 (Heap-based Buffer Overflow) (NVD).

If successfully exploited, this vulnerability allows attackers to execute arbitrary code in the context of the current process. The high CVSS score indicates potential severe impacts on system confidentiality, integrity, and availability when exploited (Zero Day Initiative).

The vulnerability has been fixed in IrfanView version 4.70 with plugins version 4.70. Users are advised to upgrade to this version to mitigate the risk (Zero Day Initiative).