CVE-2026-3393
Published: 01 March 2026
Summary
CVE-2026-3393 is a medium-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Solhsa Soloud. Its CVSS base score is 4.8 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 7.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Deeper analysis
CVE-2026-3393 is a heap-based buffer overflow vulnerability in the jarikomppa/soloud library, affecting versions up to 20200207. The issue resides in the SoLoud::Wav::loadflac function within the file src/audiosource/wav/soloud_wav.cpp, part of the Audio File Handler component. It is classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-122 (Heap-based Buffer Overflow), with a CVSS v3.1 base score of 3.3 (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L).
The vulnerability requires local access with low privileges to exploit, involving low attack complexity and no user interaction. An attacker can trigger the buffer overflow by manipulating FLAC audio files processed through the affected function, potentially causing a denial of service via application crash or limited availability impact, but without confidentiality or integrity effects.
Advisories from VulDB (ctiid.348279 and id.348279) document the issue, noting that the project was informed early via GitHub issue #401 but has not responded. No patches or official mitigations are available yet. A public exploit repro is disclosed at https://github.com/oneafter/0209/blob/main/so1/repro. Security practitioners should avoid using affected soloud versions or validate inputs rigorously when handling FLAC files in audio processing applications.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-9128
Vulnerability details
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…
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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.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Heap buffer overflow in local FLAC parser triggers application crash (A:L, no C/I impact), directly enabling T1499.004 Application or System Exploitation for DoS.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation of input data (FLAC files) to the loadflac function, blocking the malformed input that triggers the heap buffer overflow.
Enforces memory protection mechanisms that can detect or block out-of-bounds writes in the heap buffer used by SoLoud::Wav::loadflac.
Restricts the audio file handler component or disables FLAC processing to eliminate the vulnerable code path when no patch exists.