CVE-2026-21313 is a vulnerability classified as an out-of-bounds read (CWE-125) affecting Adobe Audition versions 25.3 and earlier. This flaw allows an attacker to read memory beyond the intended buffer boundaries when a victim opens a maliciously crafted audio file. The out-of-bounds read can lead to exposure of sensitive information residing in memory, such as credentials, cryptographic keys, or other confidential data. The vulnerability requires user interaction, specifically the victim opening a malicious file, and does not require any privileges or authentication. The CVSS 3.1 base score is 5.5, reflecting a medium severity with attack vector local (AV:L), low attack complexity (AC:L), no privileges required (PR:N), user interaction required (UI:R), unchanged scope (S:U), high confidentiality impact (C:H), and no impact on integrity or availability (I:N/A:N). No public exploits or active exploitation have been reported to date. Adobe has not yet published patches, so mitigation currently relies on defensive measures and cautious user behavior. This vulnerability is particularly relevant for organizations that handle audio editing and production workflows using Adobe Audition, as malicious files could be delivered via email or shared storage. The exposure of sensitive memory data could lead to further compromise if attackers extract credentials or session tokens.

For European organizations, the primary impact of CVE-2026-21313 is the potential disclosure of sensitive information from memory, which could include user credentials, encryption keys, or proprietary data. This can facilitate subsequent attacks such as unauthorized access or lateral movement within networks. Media companies, broadcasters, and creative agencies using Adobe Audition are at higher risk due to their reliance on this software for audio editing. The requirement for user interaction limits large-scale automated exploitation but targeted spear-phishing or supply chain attacks remain plausible. Confidentiality breaches could have regulatory implications under GDPR if personal data is exposed. While integrity and availability are not directly impacted, the indirect consequences of leaked sensitive data could be severe. The absence of known exploits reduces immediate risk, but the medium severity score suggests organizations should proactively address the vulnerability to prevent future exploitation.

1. Monitor Adobe’s official channels for patch releases and apply updates promptly once available. 2. Until patches are released, restrict the opening of audio files from untrusted or unknown sources within Adobe Audition. 3. Implement endpoint security solutions capable of detecting and blocking malicious files or suspicious behaviors related to file parsing. 4. Educate users about the risks of opening unsolicited or unexpected audio files, especially from email attachments or external storage devices. 5. Employ network segmentation to limit the spread of potential compromise originating from affected workstations. 6. Use application whitelisting and sandboxing techniques to isolate Adobe Audition processes and reduce the impact of exploitation. 7. Conduct regular memory and process monitoring to detect anomalous access patterns that may indicate exploitation attempts. 8. Review and enforce strict access controls on sensitive data to minimize exposure if memory disclosure occurs.