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CVE-2022-27593

96
FAUCET Score

CVE-2022-27593 is a critical externally controlled reference vulnerability affecting QNAP NAS devices running Photo Station, specifically allowing attackers to modify system files. With a CVSS score of 9.1, it presents a severe risk due to its network-based attack vector, low complexity, and high impact on integrity and availability. This vulnerability is actively exploited, notably in ransomware campaigns, and has garnered significant community attention and media coverage, despite the absence of public Metasploit or ExploitDB modules. QNAP has released patches for various QTS versions, including Photo Station 6.1.2 and later for QTS 5.0.1.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.2.14CPE matchmatch criteria
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*
< 5.4.15CPE matchmatch criteria
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*
< 5.7.18CPE matchmatch criteria
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*
< 6.0.22CPE matchmatch criteria
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*
< 6.1.2CPE matchmatch criteria
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

10.0CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
87.91%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Added to KEV · Sep 8, 2022
Nuclei: CVE-2022-27593 · Oct 14, 2022
This CVE's current EPSS score of 0.8791 is in the 99th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
qnap.com / en/security-advisory/qsa-22-24
Vendor Advisory