CVE-2025-62845 | QNAP Systems QuRouter 2.4.5.032/2.4.6.028 control sequence (qsa-26-12 / EUVD-2025-208899)

VDB-352103 · CVE-2025-62845 · QSA-26-12 QNAP SYSTEMS QUROUTER 2.4.5.032/2.4.6.028 CONTROL SEQUENCE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.4 $0-$5k 2.04+ Summaryinfo A vulnerability has been found in QNAP Systems QuRouter and classified as critical. This issue affects some unknown processing. The manipulation leads to control sequence. This vulnerability is listed as CVE-2025-62845. The attack must be carried out locally. There is no available exploit. The affected component should be upgraded. Detailsinfo A vulnerability was found in QNAP Systems QuRouter and classified as critical. This issue affects an unknown part. The manipulation with an unknown input leads to a control sequence vulnerability. Using CWE to declare the problem leads to CWE-150. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as escape, meta, or control character sequences when they are sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is: An improper neutralization of escape, meta, or control sequences vulnerability has been reported to affect QHora. If a local attacker gains an administrator account, they can then exploit the vulnerability to cause unexpected behavior. We have already fixed the vulnerability in the following version: QuRouter 2.6.3.009 and later The weakness was presented with Pwn2Own 2025 as qsa-26-12. It is possible to read the advisory at qnap.com. The identification of this vulnerability is CVE-2025-62845 since 10/24/2025. The exploitation is known to be easy. Attacking locally is a requirement. Additional levels of successful authentication are necessary for exploitation. The technical details are unknown and an exploit is not publicly available. Upgrading to version 2.6.3.009 eliminates this vulnerability. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-208899). Productinfo Type Router Operating System Vendor QNAP Systems Name QuRouter Version 2.4.5.032 2.4.6.028 License commercial 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: 6.7 VulDB Meta Temp Score: 6.4 VulDB Base Score: 6.7 VulDB Temp Score: 6.4 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: Control sequence CWE: CWE-150 / CWE-20 CAPEC: 🔒 ATT&CK: 🔒 Physical: Partially Local: Yes Remote: No 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: QuRouter 2.6.3.009 Timelineinfo 10/24/2025 CVE reserved 03/20/2026 +147 days Advisory disclosed 03/20/2026 +0 days VulDB entry created 03/20/2026 +0 days VulDB entry last update Sourcesinfo Advisory: qsa-26-12 Organization: Pwn2Own 2025 Status: Confirmed CVE: CVE-2025-62845 (🔒) GCVE (CVE): GCVE-0-2025-62845 GCVE (VulDB): GCVE-100-352103 EUVD: 🔒 Entryinfo Created: 03/20/2026 17:58 Updated: 03/20/2026 18:57 Changes: 03/20/2026 17:58 (70), 03/20/2026 18:57 (1) Complete: 🔍 Cache ID: 99:570:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸