CVE-2022-27593DeadBolt Ransomware
- 10.0CriticalCVSS base score
- 87.9%Exploitation in 30 daysEPSS · top 0.2% of all CVEs
- YesKnown exploitedin CISA's KEV since 8 Sept 2022
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
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
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as QNAP Photo Station Externally Controlled Reference Vulnerability.
- Added
- 8 Sept 2022
- Fix due (US federal)
- 29 Sept 2022
- Used by ransomware
- Known
Apply updates per vendor instructions.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 8 Sept 2022.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Nuclei template for it. CISA's SSVC rates its exploitation: it is being exploited.
Show the exploits1
Nuclei templates1 template
- QNAP QTS Photo Station External Reference - Local File Inclusion (Nuclei template) (opens in a new tab)
http/cves/2022/CVE-2022-27593.yamlSeverity critical
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By qnap
- 6 months later
· 6 months later
Published
Added to CISA KEV
Known exploited, also by ransomware
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| qnapCNA (assigner) | 3.1 | Critical10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
- EPSS (exploitation in 30 days)
- 87.9% · top 0.2% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 10.0.
Affected products
QNAP Systems Inc. · Photo Station
- affected unspecified – < 6.1.2
QNAP Systems Inc. · Photo Station
- affected unspecified – < 6.0.22
QNAP Systems Inc. · Photo Station
- affected unspecified – < 6.0.22
QNAP Systems Inc. · Photo Station
- affected unspecified – < 5.7.18
QNAP Systems Inc. · Photo Station
- affected unspecified – < 5.4.15
QNAP Systems Inc. · Photo Station
- affected unspecified – < 5.2.14
What to do
Solution: QNAP 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
References
References2
- https://www.qnap.com/en/security-advisory/qsa-22-24 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-27593 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-32094 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-27593)Record last updated .