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CVE-2018-14749

31
FAUCET Score

CVE-2018-14749 describes a critical buffer overflow vulnerability affecting multiple versions of QNAP QTS, including QTS 4.3.5 build 20181013 and earlier. This flaw carries a CVSS v3.0 score of 9.8 (Critical), indicating it is network-exploitable with low attack complexity, requiring no user interaction or privileges, and can lead to complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation, public exploit code, or inclusion in the CISA KEV catalog, the vulnerability has garnered significant community discussion, suggesting awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
4.2.6CPE matchmatch criteria
cpe:2.3:o:qnap:qts:4.2.6:*:*:*:*:*:*:*
4.3.3CPE matchmatch criteria
cpe:2.3:o:qnap:qts:4.3.3:*:*:*:*:*:*:*
4.3.4CPE matchmatch criteria
cpe:2.3:o:qnap:qts:4.3.4:*:*:*:*:*:*:*
4.3.5CPE matchmatch criteria
cpe:2.3:o:qnap:qts:4.3.5:*:*:*:*:*:*:*

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
1.19%
Probability of exploitation in next 30 days
EPSS Percentile
64.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0118 is in the 50th 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-201811-22
Vendor Advisory