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[ CVE-2022-27593 · Published 8 Sep 2022 ]

QNAP Photo Station Externally Controlled Reference Vulnerability

Exploited · CISA KEV CVSS 9.1 EPSS 88%No fix listed yet

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-09-08
  • Known to be used in ransomware campaigns
  • EPSS: 88% chance of exploitation in the next 30 days (higher than 100% of CVEs)
  • Critical severity: CVSS 9.1

[ Description ]Official 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

CISA: Certain QNAP NAS running Photo Station with internet exposure contain an externally controlled reference to a resource vulnerability which can allow an attacker to modify system files. This vulnerability was observed being utilized in a Deadbolt ransomware campaign.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 29 Sep 2022): Apply updates per vendor instructions.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References