SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2023-47218

An OS command injection vulnerability has been reported to affect several QNAP operating system versions.

HIGH 8.3EPSS 89.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 89.9%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

Description

An OS command injection vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to execute commands via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.5.2645 build 20240116 and later QuTS hero h5.1.5.2647 build 20240118 and later QuTScloud c5.1.5.2651 and later

CVSS 3.1
8.3 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
EPSS
89.92% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-77, CWE-78
Affected
qnap/qts · qnap/quts hero · qnap/qutscloud
Source
security@qnapsecurity.com.tw
EPSS trend
0%45%90%3 November 2026: 89.92%3 November 20263 November 2026

EPSS 89.9% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.