QNAP Systems QuRouter 2.4.5.032/2.4.6.028 control sequence

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

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). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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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
03/27/2026 +7 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: 03/27/2026 15:58
Changes: 03/20/2026 17:58 (70), 03/20/2026 18:57 (1), 03/26/2026 21:02 (1), 03/27/2026 15:58 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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