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CVE-2022-27593

QNAP Photo Station Externally Controlled Reference

10.0 CRITICALActively exploited (CISA KEV)Used in ransomwareEPSS 87.9%
  1. Published8 Sept 2022
  2. Added to CISA KEV8 Sept 2022
  3. Remediation due29 Sept 2022
Actively exploited (CISA KEV)

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.

Added to KEV: 8 Sept 2022Federal remediation due: 29 Sept 2022Used in ransomware

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

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityLow
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H

Affected products

QNAP Photo Station< 5.2.14 · < 5.4.15 · < 5.7.18 · < 6.0.22

Remediation

Fixed in
QNAP Photo Station≥ 5.2.14

References

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Frequently asked

Is CVE-2022-27593 being actively exploited?

Yes. CVE-2022-27593 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 8 Sept 2022. It has been used in ransomware campaigns.

How severe is CVE-2022-27593?

CVE-2022-27593 has a CVSS 3.1 base score of 10.0, rated critical. EPSS estimates a 87.9% probability of exploitation.

Which products are affected by CVE-2022-27593?

Affected products include QNAP Photo Station.

How do I fix CVE-2022-27593?

Upgrade affected software to a fixed version, for example QNAP Photo Station 5.2.14 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2022-27593 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.