CVE-2026-3393 in soloud
Summary
by MITRE • 03/01/2026
A security vulnerability has been detected in jarikomppa soloud up to 20200207. The impacted element is the function SoLoud::Wav::loadflac of the file src/audiosource/wav/soloud_wav.cpp of the component Audio File Handler. Such manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
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Analysis
by VulDB Data Team • 03/13/2026
The vulnerability identified as CVE-2026-3393 represents a critical heap-based buffer overflow within the jarikomppa soloud audio library version 20200207 and earlier. This flaw specifically affects the SoLoud::Wav::loadflac function located in the src/audiosource/wav/soloud_wav.cpp file, which serves as the audio file handler component responsible for processing flac audio files. The vulnerability stems from inadequate input validation and memory management when processing malformed flac audio data, creating a condition where an attacker can manipulate the heap memory layout through carefully crafted audio file inputs. The attack vector requires local execution privileges, meaning that exploitation can only occur when an attacker has direct access to the system running the vulnerable software, typically through file system access or the ability to inject malicious audio files into the application's processing pipeline.
The technical exploitation of this vulnerability follows the patterns outlined in CWE-121, heap-based buffer overflow, where insufficient bounds checking allows attackers to write beyond allocated memory boundaries. When the SoLoud::Wav::loadflac function processes a malicious flac file, it fails to properly validate the size parameters of the audio data structure, leading to memory corruption that can result in arbitrary code execution or application crash. This type of vulnerability aligns with ATT&CK technique T1059.007, which involves executing malicious code through legitimate system utilities or libraries, as the vulnerable library is likely used by various applications that process audio content. The publicly disclosed exploit demonstrates that attackers have already developed working methods to leverage this flaw, making it a pressing concern for any system that utilizes this version of the soloud library.
The operational impact of this vulnerability extends beyond simple application instability, as heap corruption can lead to complete system compromise when exploited successfully. Applications that incorporate the affected soloud library for audio processing, including games, multimedia applications, and audio editing software, become potential attack vectors for local privilege escalation or remote code execution scenarios. The lack of response from the project maintainers after early issue reporting creates additional risk, as organizations may be forced to implement emergency patches or workarounds rather than waiting for official updates. This vulnerability particularly affects systems where audio file processing occurs in untrusted environments, such as media processing servers or applications that accept user-uploaded audio content, as these scenarios provide the perfect conditions for exploitation through crafted malicious audio files that can trigger the buffer overflow during normal operation.
Organizations should immediately implement mitigations including updating to the latest version of the soloud library where the vulnerability has been patched, implementing strict input validation for all audio file processing, and deploying runtime protections such as address space layout randomization and stack canaries. Additionally, security teams should monitor for any potential exploitation attempts through network traffic analysis or file system monitoring, as the vulnerability may be leveraged in supply chain attacks targeting applications that use the affected library. The vulnerability also underscores the importance of maintaining up-to-date dependencies and implementing proper vulnerability management processes to ensure timely response to security issues in third-party components, particularly those handling multimedia data processing where input validation is critical for preventing memory corruption exploits.