CVE-2025-59383 | QNAP Media Streaming Add-on up to 500.1.0 stack-based overflow (qsa-26-09 / EUVD-2025-208893)

VDB-352096 · CVE-2025-59383 · QSA-26-09 QNAP MEDIA STREAMING ADD-ON UP TO 500.1.0 STACK-BASED OVERFLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.0 $0-$5k 2.17+ Summaryinfo A vulnerability labeled as critical has been found in QNAP Media Streaming Add-on up to 500.1.0. This affects an unknown function. Executing a manipulation can lead to stack-based overflow. This vulnerability is handled as CVE-2025-59383. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded. Detailsinfo A vulnerability was found in QNAP Media Streaming Add-on up to 500.1.0. It has been declared as critical. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes: A buffer overflow vulnerability has been reported to affect Media Streaming Add-On. The remote attackers can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: Media Streaming Add-on 500.1.1 and later The weakness was released by Dohwan Kim as qsa-26-09. The advisory is shared for download at qnap.com. This vulnerability was named CVE-2025-59383 since 09/15/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. Upgrading to version 500.1.1 eliminates this vulnerability. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-208893). Productinfo Vendor QNAP Name Media Streaming Add-on Version 500.0 500.1.0 License commercial Website Vendor: https://www.qnap.com/ CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 7.3 VulDB Meta Temp Score: 7.0 VulDB Base Score: 7.3 VulDB Temp Score: 7.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Stack-based overflow CWE: CWE-121 / CWE-119 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Media Streaming Add-on 500.1.1 Timelineinfo 09/15/2025 CVE reserved 03/20/2026 +186 days Advisory disclosed 03/20/2026 +0 days VulDB entry created 03/20/2026 +0 days VulDB entry last update Sourcesinfo Vendor: qnap.com Advisory: qsa-26-09 Researcher: Dohwan Kim Status: Confirmed CVE: CVE-2025-59383 (🔒) GCVE (CVE): GCVE-0-2025-59383 GCVE (VulDB): GCVE-100-352096 EUVD: 🔒 Entryinfo Created: 03/20/2026 17:56 Updated: 03/20/2026 18:57 Changes: 03/20/2026 17:56 (69), 03/20/2026 18:57 (1) Complete: 🔍 Cache ID: 99:4A0:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸