SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-19941

A vulnerability has been reported to affect QNAP NAS.

HIGH 7.5EPSS 0.67%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.67%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability has been reported to affect QNAP NAS. If exploited, this vulnerability allows an attacker to access sensitive information stored in cleartext inside cookies via certain widely-available tools. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.1.1456 build 20201015 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later) QuTScloud c4.5.2.1379 build 20200730 (and later)

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
0.67% probability · 52th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-315, CWE-312
Affected
qnap/qts · qnap/quts hero · qnap/qutscloud
Source
security@qnapsecurity.com.tw
EPSS trend
0%3%5%27 October 2026: 0.67%27 October 202627 October 2026

EPSS 0.7% since 27 October 2026; no change recorded yet. 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.