CVE-2022-27593: QNAP Photo Station Externally Controlled Reference Vulnerability

Vulnerability summary

CVE-2022-27593 is a critical (CVSS 10.0) vulnerability in QNAP Photo Station. It is known to be exploited: CISA lists it, first on 08-09-2022. It has been used in ransomware campaigns. EPSS estimates a 87.91% chance of exploitation in the next 30 days, higher than 99.7% of scored vulnerabilities.

Timeline

1. 08-09-2022
   PublishedVulnerability first disclosed.
2. 08-09-2022
   Added to CISA KEVQNAP Photo Station Externally Controlled Reference Vulnerability
3. 29-09-2022
   CISA remediation dueApply updates per vendor instructions.
4. 21-10-2025
   Last modifiedVulnerability information updated.

Description

An externally controlled reference to a resource vulnerability has been reported to affect QNAP NAS running Photo Station. If exploited, This could allow an attacker to modify system files. We have already fixed the vulnerability in the following versions: QTS 5.0.1: Photo Station 6.1.2 and later QTS 5.0.0/4.5.x: Photo Station 6.0.22 and later QTS 4.3.6: Photo Station 5.7.18 and later QTS 4.3.3: Photo Station 5.4.15 and later QTS 4.2.6: Photo Station 5.2.14 and later

• CWE-610Externally Controlled Reference to a Resource in Another SphereThe product uses an externally controlled name or reference that resolves to a resource that is outside of the intended control sphere.