ExploitedNot in CISA KEV yet

CVE-2017-7876

Exploitation confirmed. First attested on 2023-10-16 by GCVE · previdian, GCVE · shadowserver.

Published2017-06-15
WeaknessCWE-77

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

This command injection vulnerability in QTS allows attackers to run arbitrary commands in the compromised application. QNAP have already fixed the issue in QTS 4.2.6 build 20170517, QTS 4.3.3.0174 build 20170503 and later versions.

Timeline

dates in UTC

2017-06-1520:29CVE publishedNVD
2023-10-1610:27Listed as exploited by GCVEGCVE
2023-10-1610:27Exploitation first reportedGCVE

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-7876?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-7876?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Qnap qts

Branch	Affected	Fixed in	Source
4.2	≤ 4.2.6	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

GCVEexploitation2023-10-16
CNACVSS 3.110read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
NVDweakness (CWE)CWE-77read 2026-10-23
FIRST EPSSEPSS score3.3 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published: 2017-06-15
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-7876?

Is CVE-2017-7876 actively exploited?

Active exploitation of CVE-2017-7876 has not been confirmed. Its EPSS score was 3.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-7876?

CVE-2017-7876 has a CVSS v3 base score of 10 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

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