Security readout for executives and security teams
Plain-English summary
This is a critical QNAP Photo Station flaw on NAS devices. An unauthenticated network attacker could change system files, creating serious ransomware and service disruption risk. QNAP lists fixed Photo Station versions for multiple QTS branches.
Executive priority
Treat this as urgent for any QNAP NAS in production or exposed to the internet. Known exploitation and ransomware association make delayed patching a material operational risk.
Technical view
CVE-2022-27593 is a CWE-610 externally controlled resource reference issue affecting QNAP NAS running Photo Station. CVSS 3.1 is 10.0, with network access, low complexity, no privileges, no user interaction, changed scope, low confidentiality, high integrity, and high availability impact.
Likely exposure
Exposure is QNAP NAS devices running Photo Station before QNAP's fixed versions, especially internet-reachable systems. The bundle lists affected product versions as unspecified, so teams must verify QTS branch and Photo Station version per asset.
Exploitation context
CISA KEV confirms known exploitation. The source bundle associates the CVE with DeadBolt ransomware. Sources provided do not describe exploit mechanics, payloads, or observed campaign details beyond known exploitation and ransomware context.
Researcher notes
The evidence supports critical severity, known exploitation, and fixed Photo Station versions. It does not provide exploit details, exact vulnerable version ranges, or non-update workarounds, so validation should focus on version confirmation and vendor guidance.
Mitigation direction
- Update Photo Station to QNAP's fixed version for the installed QTS branch.
- For QTS 5.0.1, use Photo Station 6.1.2 or later.
- For QTS 5.0.0 or 4.5.x, use Photo Station 6.0.22 or later.
- For QTS 4.3.6, use Photo Station 5.7.18 or later.
- For QTS 4.3.3, use Photo Station 5.4.15 or later.
- For QTS 4.2.6, use Photo Station 5.2.14 or later.
Validation and detection
- Inventory QNAP NAS assets and identify those running Photo Station.
- Record each device's QTS branch and installed Photo Station version.
- Compare installed versions against QNAP's fixed-version list.
- Confirm remediation status for any internet-facing QNAP NAS first.
- Review affected systems for unauthorized file changes or ransomware indicators using approved procedures.
Public sources used
Michael Williams reviewed this cited source version on .
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Open ATT&CK lookupCVE-2022-27593 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 10 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H3.96Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.qnap.com/en/security-advisory/qsa-22-24CVE reference · x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-27593CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Externally Controlled Reference to a Resource in Another Sphere
Externally Controlled Reference to a Resource in Another Sphere represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.