Known exploited vulnerability
CVE-2020-2509
The short answer
CVE-2020-2509 affects QNAP Systems Inc. QTS and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-04-11: attackers are using it, so patch it first.
What it is
A command injection vulnerability has been reported to affect QTS and QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary commands in a compromised application. We have already fixed this vulnerability in the following versions: QTS 4.5.2.1566 Build 20210202 and later QTS 4.5.1.1495 Build 20201123 and later QTS 4.3.6.1620 Build 20210322 and later QTS 4.3.4.1632 Build 20210324 and later QTS 4.3.3.1624 Build 20210416 and later QTS 4.2.6 Build 20210327 and later QuTS hero h4.5.1.1491 build 20201119 and later
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Apr 11, 2022
Federal due date May 2, 2022
EPSS, next 30 days
34%
Higher than 98% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
QTS, QuTS hero. NVD's record lists the exact affected versions.
References
- www.qnap.com/en/security-advisory/qsa-21-05 Vendor Advisory
- www.qnap.com/en/security-advisory/qsa-21-05 Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-2509 US Government Resource
Questions
Is CVE-2020-2509 being exploited?
Yes. CISA added CVE-2020-2509 to its Known Exploited Vulnerabilities catalog on 2022-04-11, with a federal remediation due date of 2022-05-02.
How do I fix CVE-2020-2509?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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