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CVE-2017-17030

31
FAUCET Score

CVE-2017-17030 is a critical buffer overflow vulnerability affecting the login function of QNAP QTS versions 4.2.6, 4.3.3, 4.3.4 (Beta 2), and earlier. This flaw allows unauthenticated remote attackers to execute arbitrary code on vulnerable Network Attached Storage (NAS) devices. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability compromise. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.3.3.0378CPE matchmatch criteria
cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
4.3.4.0358CPE matchmatch criteria
cpe:2.3:o:qnap:qts:4.3.4.0358:beta1:*:*:*:*:*:*
4.3.4.0370CPE matchmatch criteria
cpe:2.3:o:qnap:qts:4.3.4.0370:beta1:*:*:*:*:*:*
4.3.4.0372CPE matchmatch criteria
cpe:2.3:o:qnap:qts:4.3.4.0372:beta1:*:*:*:*:*:*
4.3.4.0374CPE matchmatch criteria
cpe:2.3:o:qnap:qts:4.3.4.0374:beta1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.28%
Probability of exploitation in next 30 days
EPSS Percentile
87.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0328 is in the 79th percentile among its peer group of 36,862 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

No media coverage found for this CVE.

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

qnap.com / zh-tw/security-advisory/nas-201712-15
Issue TrackingVendor Advisory
securitytracker.com / id/1040018
Third Party AdvisoryVDB Entry